21213332031112 has 64 divisors (see below), whose sum is σ = 42969807417600. Its totient is φ = 9759887189760.

The previous prime is 21213332031097. The next prime is 21213332031137. The reversal of 21213332031112 is 21113023331212.

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, 102234333 + ... + 102441619.

It is an arithmetic number, because the mean of its divisors is an integer number (671403240900).

Almost surely, 2^{21213332031112} is an apocalyptic number.

It is an amenable number.

21213332031112 is an abundant number, since it is smaller than the sum of its proper divisors (21756475386488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21213332031112 is a wasteful number, since it uses less digits than its factorization.

21213332031112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210406 (or 210402 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 21213332031112 its reverse (21113023331212), we get a palindrome (42326355362324).

The spelling of 21213332031112 in words is "twenty-one trillion, two hundred thirteen billion, three hundred thirty-two million, thirty-one thousand, one hundred twelve".