21116034325612 has 12 divisors (see below), whose sum is σ = 37001113469320. Its totient is φ = 10544287620096.

The previous prime is 21116034325543. The next prime is 21116034325613. The reversal of 21116034325612 is 21652343061112.

It is not an unprimeable number, because it can be changed into a prime (21116034325613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3432382218 + ... + 3432388369.

Almost surely, 2^{21116034325612} is an apocalyptic number.

It is an amenable number.

21116034325612 is a deficient number, since it is larger than the sum of its proper divisors (15885079143708).

21116034325612 is a wasteful number, since it uses less digits than its factorization.

21116034325612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6864771360 (or 6864771358 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 21116034325612 its reverse (21652343061112), we get a palindrome (42768377386724).

The spelling of 21116034325612 in words is "twenty-one trillion, one hundred sixteen billion, thirty-four million, three hundred twenty-five thousand, six hundred twelve".