111200421512 has 32 divisors (see below), whose sum is σ = 209892216000. Its totient is φ = 55230081984.

The previous prime is 111200421503. The next prime is 111200421517. The reversal of 111200421512 is 215124002111.

It is a super-2 number, since 2×111200421512² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111200421517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 918923 + ... + 1032869.

It is an arithmetic number, because the mean of its divisors is an integer number (6559131750).

Almost surely, 2^111200421512 is an apocalyptic number.

It is an amenable number.

111200421512 is a deficient number, since it is larger than the sum of its proper divisors (98691794488).

111200421512 is a wasteful number, since it uses less digits than its factorization.

111200421512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114765 (or 114761 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 111200421512 its reverse (215124002111), we get a palindrome (326324423623).

The spelling of 111200421512 in words is "one hundred eleven billion, two hundred million, four hundred twenty-one thousand, five hundred twelve".