122112111012 has 48 divisors (see below), whose sum is σ = 289817767680. Its totient is φ = 40009344768.

The previous prime is 122112110969. The next prime is 122112111049. The reversal of 122112111012 is 210111211221.

It is a happy number.

It is a super-2 number, since 2×122112111012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122112110982 and 122112111000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18789 + ... + 494547.

It is an arithmetic number, because the mean of its divisors is an integer number (6037870160).

Almost surely, 2^122112111012 is an apocalyptic number.

122112111012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122112111012 is an abundant number, since it is smaller than the sum of its proper divisors (167705656668).

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

122112111012 is a wasteful number, since it uses less digits than its factorization.

122112111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476132 (or 476130 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 122112111012 its reverse (210111211221), we get a palindrome (332223322233).

The spelling of 122112111012 in words is "one hundred twenty-two billion, one hundred twelve million, one hundred eleven thousand, twelve".