22100102001 has 6 divisors (see below), whose sum is σ = 31922369570. Its totient is φ = 14733401328.

The previous prime is 22100101993. The next prime is 22100102009. The reversal of 22100102001 is 10020100122.

It is an interprime number because it is at equal distance from previous prime (22100101993) and next prime (22100102009).

It can be written as a sum of positive squares in only one way, i.e., 22038887025 + 61214976 = 148455^2 + 7824^2 .

It is not a de Polignac number, because 22100102001 - 2³ = 22100101993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 2455566889 = 22100102001 / (2 + 2 + 1 + 0 + 0 + 1 + 0 + 2 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22100102009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1227783436 + ... + 1227783453.

Almost surely, 2^22100102001 is an apocalyptic number.

It is an amenable number.

22100102001 is a deficient number, since it is larger than the sum of its proper divisors (9822267569).

22100102001 is a wasteful number, since it uses less digits than its factorization.

22100102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455566895 (or 2455566892 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 22100102001 its reverse (10020100122), we get a palindrome (32120202123).

The spelling of 22100102001 in words is "twenty-two billion, one hundred million, one hundred two thousand, one".