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122212222202020 = 22519133194255677
BaseRepresentation
bin11011110010011011000000…
…000101110111000010100100
3121000201101002220010202121211
4123302123000011313002210
5112004311112340431040
61111531304140121204
734512353536510246
oct3362330005670244
9530641086122554
10122212222202020
1135a38a044044a5
1211859669b36204
1353267421a37c2
142227162d40096
15e1e048aba8ea
hex6f26c01770a4

122212222202020 has 24 divisors (see below), whose sum is σ = 256779825443064. Its totient is φ = 48859334820096.

The previous prime is 122212222201991. The next prime is 122212222202029. The reversal of 122212222202020 is 20202222212221.

It can be written as a sum of positive squares in 4 ways, for example, as 11534079346596 + 110678142855424 = 3396186^2 + 10520368^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122212222201982 and 122212222202000.

It is not an unprimeable number, because it can be changed into a prime (122212222202029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1597089579 + ... + 1597166098.

It is an arithmetic number, because the mean of its divisors is an integer number (10699159393461).

Almost surely, 2122212222202020 is an apocalyptic number.

122212222202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122212222202020 is an abundant number, since it is smaller than the sum of its proper divisors (134567603241044).

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

122212222202020 is a wasteful number, since it uses less digits than its factorization.

122212222202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194257599 (or 3194257597 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 122212222202020 its reverse (20202222212221), we get a palindrome (142414444414241).

The spelling of 122212222202020 in words is "one hundred twenty-two trillion, two hundred twelve billion, two hundred twenty-two million, two hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 1913 3826 7652 9565 19130 38260 3194255677 6388511354 12777022708 15971278385 31942556770 63885113540 6110611110101 12221222220202 24442444440404 30553055550505 61106111101010 122212222202020