21102122200112 has 20 divisors (see below), whose sum is σ = 40885613711280. Its totient is φ = 10550996081088.

The previous prime is 21102122200099. The next prime is 21102122200163. The reversal of 21102122200112 is 21100222120112.

It is a super-2 number, since 2×21102122200112² (a number of 27 digits) contains 22 as substring.

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, 1330412 + ... + 6631307.

It is an arithmetic number, because the mean of its divisors is an integer number (2044280685564).

Almost surely, 2^{21102122200112} is an apocalyptic number.

It is an amenable number.

21102122200112 is a deficient number, since it is larger than the sum of its proper divisors (19783491511168).

21102122200112 is a wasteful number, since it uses less digits than its factorization.

21102122200112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8127380 (or 8127374 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21102122200112 its reverse (21100222120112), we get a palindrome (42202344320224).

The spelling of 21102122200112 in words is "twenty-one trillion, one hundred two billion, one hundred twenty-two million, two hundred thousand, one hundred twelve".