22110002001 has 32 divisors (see below), whose sum is σ = 35801164800. Its totient is φ = 13425419520.

The previous prime is 22110001951. The next prime is 22110002003. The reversal of 22110002001 is 10020001122.

It is not a de Polignac number, because 22110002001 - 2¹³ = 22109993809 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 (22110002003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 762706 + ... + 791163.

It is an arithmetic number, because the mean of its divisors is an integer number (1118786400).

Almost surely, 2^22110002001 is an apocalyptic number.

It is an amenable number.

22110002001 is a deficient number, since it is larger than the sum of its proper divisors (13691162799).

22110002001 is a wasteful number, since it uses less digits than its factorization.

22110002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553926 (or 1553920 counting only the distinct ones).

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

Adding to 22110002001 its reverse (10020001122), we get a palindrome (32130003123).

The spelling of 22110002001 in words is "twenty-two billion, one hundred ten million, two thousand, one".