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122212012212020 = 2256110600610601
BaseRepresentation
bin11011110010011010110011…
…100100110011111100110100
3121000201100120021000011111102
4123302122303210303330310
5112004310200111241040
61111531231235225232
734512345406564433
oct3362326344637464
9530640507004442
10122212012212020
1135a38906918945
121185960b748218
13532670a82c373
1422271430bb11a
15e1e03543b515
hex6f26b3933f34

122212012212020 has 12 divisors (see below), whose sum is σ = 256645225645284. Its totient is φ = 48884804884800.

The previous prime is 122212012211983. The next prime is 122212012212097. The reversal of 122212012212020 is 20212210212221.

It can be written as a sum of positive squares in 2 ways, for example, as 15716134352164 + 106495877859856 = 3964358^2 + 10319684^2 .

It is a super-2 number, since 2×1222120122120202 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 6110600610601 = 122212012212020 / (1 + 2 + 2 + 2 + 1 + 2 + 0 + 1 + 2 + 2 + 1 + 2 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 122212012211983 and 122212012212001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3055300305281 + ... + 3055300305320.

It is an arithmetic number, because the mean of its divisors is an integer number (21387102137107).

Almost surely, 2122212012212020 is an apocalyptic number.

122212012212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122212012212020 is an abundant number, since it is smaller than the sum of its proper divisors (134433213433264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122212012212020 is a wasteful number, since it uses less digits than its factorization.

122212012212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6110600610610 (or 6110600610608 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 122212012212020 its reverse (20212210212221), we get a palindrome (142424222424241).

The spelling of 122212012212020 in words is "one hundred twenty-two trillion, two hundred twelve billion, twelve million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 6110600610601 12221201221202 24442402442404 30553003053005 61106006106010 122212012212020