22123131001 has 32 divisors (see below), whose sum is σ = 23353214976. Its totient is φ = 20939520000.

The previous prime is 22123130993. The next prime is 22123131071. The reversal of 22123131001 is 10013132122.

It is not a de Polignac number, because 22123131001 - 2³ = 22123130993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22123131071) 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, 65647105 + ... + 65647441.

It is an arithmetic number, because the mean of its divisors is an integer number (729787968).

Almost surely, 2^22123131001 is an apocalyptic number.

It is an amenable number.

22123131001 is a deficient number, since it is larger than the sum of its proper divisors (1230083975).

22123131001 is a wasteful number, since it uses less digits than its factorization.

22123131001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 22123131001 its reverse (10013132122), we get a palindrome (32136263123).

The spelling of 22123131001 in words is "twenty-two billion, one hundred twenty-three million, one hundred thirty-one thousand, one".