21120020200112 has 10 divisors (see below), whose sum is σ = 40920039137748. Its totient is φ = 10560010100048.

The previous prime is 21120020200093. The next prime is 21120020200133. The reversal of 21120020200112 is 21100202002112.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660000631238 + ... + 660000631269.

Almost surely, 2^{21120020200112} is an apocalyptic number.

It is an amenable number.

21120020200112 is a deficient number, since it is larger than the sum of its proper divisors (19800018937636).

21120020200112 is a wasteful number, since it uses less digits than its factorization.

21120020200112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320001262515 (or 1320001262509 counting only the distinct ones).

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

Adding to 21120020200112 its reverse (21100202002112), we get a palindrome (42220222202224).

The spelling of 21120020200112 in words is "twenty-one trillion, one hundred twenty billion, twenty million, two hundred thousand, one hundred twelve".