21220061050112 has 36 divisors (see below), whose sum is σ = 42431412319296. Its totient is φ = 10591448962560.

The previous prime is 21220061050093. The next prime is 21220061050171. The reversal of 21220061050112 is 21105016002212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72437768 + ... + 72730119.

Almost surely, 2^{21220061050112} is an apocalyptic number.

It is an amenable number.

21220061050112 is a deficient number, since it is larger than the sum of its proper divisors (21211351269184).

21220061050112 is an equidigital number, since it uses as much as digits as its factorization.

21220061050112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145168474 (or 145168460 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 21220061050112 its reverse (21105016002212), we get a palindrome (42325077052324).

The spelling of 21220061050112 in words is "twenty-one trillion, two hundred twenty billion, sixty-one million, fifty thousand, one hundred twelve".