122112100012 has 24 divisors (see below), whose sum is σ = 244768154400. Its totient is φ = 52217195520.

The previous prime is 122112100009. The next prime is 122112100039. The reversal of 122112100012 is 210001211221.

It is a super-2 number, since 2×122112100012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122112099965 and 122112100001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4843939 + ... + 4869082.

It is an arithmetic number, because the mean of its divisors is an integer number (10198673100).

Almost surely, 2^122112100012 is an apocalyptic number.

It is an amenable number.

122112100012 is an abundant number, since it is smaller than the sum of its proper divisors (122656054388).

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

122112100012 is a wasteful number, since it uses less digits than its factorization.

122112100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9713481 (or 9713479 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122112100012 its reverse (210001211221), we get a palindrome (332113311233).

The spelling of 122112100012 in words is "one hundred twenty-two billion, one hundred twelve million, one hundred thousand, twelve".