21202002100112 has 10 divisors (see below), whose sum is σ = 41078879068998. Its totient is φ = 10601001050048.

The previous prime is 21202002100063. The next prime is 21202002100177. The reversal of 21202002100112 is 21100120020212.

It can be written as a sum of positive squares in only one way, i.e., 20952078094336 + 249924005776 = 4577344^2 + 499924^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662562565613 + ... + 662562565644.

Almost surely, 2^{21202002100112} is an apocalyptic number.

It is an amenable number.

21202002100112 is a deficient number, since it is larger than the sum of its proper divisors (19876876968886).

21202002100112 is a wasteful number, since it uses less digits than its factorization.

21202002100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325125131265 (or 1325125131259 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21202002100112 its reverse (21100120020212), we get a palindrome (42302122120324).

The spelling of 21202002100112 in words is "twenty-one trillion, two hundred two billion, two million, one hundred thousand, one hundred twelve".