21101100222110 has 16 divisors (see below), whose sum is σ = 39291703862400. Its totient is φ = 8149390430496.

The previous prime is 21101100222049. The next prime is 21101100222121. The reversal of 21101100222110 is 1122200110112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36381206990 + ... + 36381207569.

It is an arithmetic number, because the mean of its divisors is an integer number (2455731491400).

Almost surely, 2^{21101100222110} is an apocalyptic number.

21101100222110 is a deficient number, since it is larger than the sum of its proper divisors (18190603640290).

21101100222110 is a wasteful number, since it uses less digits than its factorization.

21101100222110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72762414595.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21101100222110 its reverse (1122200110112), we get a palindrome (22223300332222).

The spelling of 21101100222110 in words is "twenty-one trillion, one hundred one billion, one hundred million, two hundred twenty-two thousand, one hundred ten".