22110101001 has 12 divisors (see below), whose sum is σ = 32539394628. Its totient is φ = 14461952544.

The previous prime is 22110100993. The next prime is 22110101017. The reversal of 22110101001 is 10010101122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6690422025 + 15419678976 = 81795^2 + 124176^2 .

It is not a de Polignac number, because 22110101001 - 2³ = 22110100993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (22110101021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23175730 + ... + 23176683.

It is an arithmetic number, because the mean of its divisors is an integer number (2711616219).

Almost surely, 2^22110101001 is an apocalyptic number.

It is an amenable number.

22110101001 is a deficient number, since it is larger than the sum of its proper divisors (10429293627).

22110101001 is a wasteful number, since it uses less digits than its factorization.

22110101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46352472 (or 46352469 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 22110101001 its reverse (10010101122), we get a palindrome (32120202123).

The spelling of 22110101001 in words is "twenty-two billion, one hundred ten million, one hundred one thousand, one".