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122011120212 = 22310167593351
BaseRepresentation
bin111000110100001101…
…1011111001001010100
3102122221011110002210020
41301220123133021110
53444334321321322
6132015013425140
711546356260432
oct1615033371124
9378834402706
10122011120212
1147821107543
121b79133b1b0
13b675a56127
145c96497d52
15329181305c
hex1c686df254

122011120212 has 12 divisors (see below), whose sum is σ = 284692613856. Its totient is φ = 40670373400.

The previous prime is 122011120211. The next prime is 122011120219. The reversal of 122011120212 is 212021110221.

122011120212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×1220111202122 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122011120191 and 122011120200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122011120211) by changing a digit.

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, 5083796664 + ... + 5083796687.

It is an arithmetic number, because the mean of its divisors is an integer number (23724384488).

Almost surely, 2122011120212 is an apocalyptic number.

122011120212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122011120212 is an abundant number, since it is smaller than the sum of its proper divisors (162681493644).

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

122011120212 is a wasteful number, since it uses less digits than its factorization.

122011120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10167593358 (or 10167593356 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122011120212 its reverse (212021110221), we get a palindrome (334032230433).

Subtracting 122011120212 from its reverse (212021110221), we obtain a palindrome (90009990009).

The spelling of 122011120212 in words is "one hundred twenty-two billion, eleven million, one hundred twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 10167593351 20335186702 30502780053 40670373404 61005560106 122011120212