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122020120212 = 22310168343351
BaseRepresentation
bin111000110100011110…
…1110100011010010100
3102122221210101100110120
41301220331310122110
53444344122321322
6132015534351540
711546525623464
oct1615075643224
9378853340416
10122020120212
11478261a4361
121b79435b5b0
13b677887783
145c9775bba4
1532924dea5c
hex1c68f74694

122020120212 has 12 divisors (see below), whose sum is σ = 284713613856. Its totient is φ = 40673373400.

The previous prime is 122020120139. The next prime is 122020120223. The reversal of 122020120212 is 212021020221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-4 number, since 4×1220201202124 (a number of 45 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122020120191 and 122020120200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5084171664 + ... + 5084171687.

It is an arithmetic number, because the mean of its divisors is an integer number (23726134488).

Almost surely, 2122020120212 is an apocalyptic number.

122020120212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122020120212 is an abundant number, since it is smaller than the sum of its proper divisors (162693493644).

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

122020120212 is a wasteful number, since it uses less digits than its factorization.

122020120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10168343358 (or 10168343356 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122020120212 its reverse (212021020221), we get a palindrome (334041140433).

Subtracting 122020120212 from its reverse (212021020221), we obtain a palindrome (90000900009).

The spelling of 122020120212 in words is "one hundred twenty-two billion, twenty million, one hundred twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 10168343351 20336686702 30505030053 40673373404 61010060106 122020120212