111244645225 has 24 divisors (see below), whose sum is σ = 157799814848. Its totient is φ = 76209336000.

The previous prime is 111244645181. The next prime is 111244645241. The reversal of 111244645225 is 522546442111.

It is not a de Polignac number, because 111244645225 - 2²¹ = 111242548073 is a prime.

It is a super-2 number, since 2×111244645225² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118494 + ... + 486343.

Almost surely, 2^111244645225 is an apocalyptic number.

It is an amenable number.

111244645225 is a deficient number, since it is larger than the sum of its proper divisors (46555169623).

111244645225 is a wasteful number, since it uses less digits than its factorization.

111244645225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605905 (or 605900 counting only the distinct ones).

The product of its digits is 76800, while the sum is 37.

The spelling of 111244645225 in words is "one hundred eleven billion, two hundred forty-four million, six hundred forty-five thousand, two hundred twenty-five".