216124421612 has 48 divisors (see below), whose sum is σ = 418871789952. Its totient is φ = 96746158080.

The previous prime is 216124421599. The next prime is 216124421629.

216124421612 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14712023 + ... + 14726705.

It is an arithmetic number, because the mean of its divisors is an integer number (8726495624).

Almost surely, 2^216124421612 is an apocalyptic number.

216124421612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

216124421612 is a deficient number, since it is larger than the sum of its proper divisors (202747368340).

216124421612 is a wasteful number, since it uses less digits than its factorization.

216124421612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19758 (or 19756 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

It can be divided in two parts, 216124 and 421612, that added together give a palindrome (637736).

The spelling of 216124421612 in words is "two hundred sixteen billion, one hundred twenty-four million, four hundred twenty-one thousand, six hundred twelve".