111002224431 has 24 divisors (see below), whose sum is σ = 172185775104. Its totient is φ = 63422820720.

The previous prime is 111002224367. The next prime is 111002224447. The reversal of 111002224431 is 134422200111.

It is not a de Polignac number, because 111002224431 - 2⁶ = 111002224367 is a prime.

It is a super-2 number, since 2×111002224431² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 111002224398 and 111002224407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111002224451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1477896 + ... + 1551186.

It is an arithmetic number, because the mean of its divisors is an integer number (7174407296).

Almost surely, 2^111002224431 is an apocalyptic number.

111002224431 is a deficient number, since it is larger than the sum of its proper divisors (61183550673).

111002224431 is a wasteful number, since it uses less digits than its factorization.

111002224431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83611 (or 83604 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 111002224431 its reverse (134422200111), we get a palindrome (245424424542).

The spelling of 111002224431 in words is "one hundred eleven billion, two million, two hundred twenty-four thousand, four hundred thirty-one".