22100110021 has 16 divisors (see below), whose sum is σ = 24681843648. Its totient is φ = 19614268800.

The previous prime is 22100110001. The next prime is 22100110033. The reversal of 22100110021 is 12001100122.

It is a cyclic number.

It is not a de Polignac number, because 22100110021 - 2⁵ = 22100109989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100110001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1076311 + ... + 1096651.

It is an arithmetic number, because the mean of its divisors is an integer number (1542615228).

Almost surely, 2^22100110021 is an apocalyptic number.

It is an amenable number.

22100110021 is a deficient number, since it is larger than the sum of its proper divisors (2581733627).

22100110021 is a wasteful number, since it uses less digits than its factorization.

22100110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22692.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 22100110021 its reverse (12001100122), we get a palindrome (34101210143).

The spelling of 22100110021 in words is "twenty-two billion, one hundred million, one hundred ten thousand, twenty-one".