22131000001 has 4 divisors (see below), whose sum is σ = 24142909104. Its totient is φ = 20119090900.

The previous prime is 22130999977. The next prime is 22131000013. The reversal of 22131000001 is 10000013122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22131000001 - 2¹⁵ = 22130967233 is a prime.

It is a super-2 number, since 2×22131000001² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22131000091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005954535 + ... + 1005954556.

It is an arithmetic number, because the mean of its divisors is an integer number (6035727276).

Almost surely, 2^22131000001 is an apocalyptic number.

It is an amenable number.

22131000001 is a deficient number, since it is larger than the sum of its proper divisors (2011909103).

22131000001 is a wasteful number, since it uses less digits than its factorization.

22131000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011909102.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 22131000001 its reverse (10000013122), we get a palindrome (32131013123).

The spelling of 22131000001 in words is "twenty-two billion, one hundred thirty-one million, one", and thus it is an aban number.