111010121200012 has 24 divisors (see below), whose sum is σ = 195036356239200. Its totient is φ = 55285881580416.

The previous prime is 111010121200007. The next prime is 111010121200019. The reversal of 111010121200012 is 210002121010111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111010121199965 and 111010121200001.

It is not an unprimeable number, because it can be changed into a prime (111010121200019) 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, 53174337 + ... + 55222552.

It is an arithmetic number, because the mean of its divisors is an integer number (8126514843300).

Almost surely, 2^{111010121200012} is an apocalyptic number.

It is an amenable number.

111010121200012 is a deficient number, since it is larger than the sum of its proper divisors (84026235039188).

111010121200012 is a wasteful number, since it uses less digits than its factorization.

111010121200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108397905 (or 108397903 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111010121200012 its reverse (210002121010111), we get a palindrome (321012242210123).

The spelling of 111010121200012 in words is "one hundred eleven trillion, ten billion, one hundred twenty-one million, two hundred thousand, twelve".