111010100012 has 24 divisors (see below), whose sum is σ = 222649172256. Its totient is φ = 47440977408.

The previous prime is 111010099999. The next prime is 111010100023. The reversal of 111010100012 is 210001010111.

It is a happy number.

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, 5605763 + ... + 5625530.

It is an arithmetic number, because the mean of its divisors is an integer number (9277048844).

Almost surely, 2^111010100012 is an apocalyptic number.

It is an amenable number.

111010100012 is an abundant number, since it is smaller than the sum of its proper divisors (111639072244).

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

111010100012 is a wasteful number, since it uses less digits than its factorization.

111010100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11231657 (or 11231655 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 111010100012 its reverse (210001010111), we get a palindrome (321011110123).

The spelling of 111010100012 in words is "one hundred eleven billion, ten million, one hundred thousand, twelve".