22000131 has 12 divisors (see below), whose sum is σ = 32226480. Its totient is φ = 14459760.

The previous prime is 22000129. The next prime is 22000151. The reversal of 22000131 is 13100022.

It is a happy number.

It is not a de Polignac number, because 22000131 - 2¹ = 22000129 is a prime.

It is a super-2 number, since 2×22000131² = 968011528034322, which contains 22 as substring.

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 (22000151) 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, 16576 + ... + 17853.

It is an arithmetic number, because the mean of its divisors is an integer number (2685540).

Almost surely, 2^22000131 is an apocalyptic number.

22000131 is a deficient number, since it is larger than the sum of its proper divisors (10226349).

22000131 is a wasteful number, since it uses less digits than its factorization.

22000131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34506 (or 34503 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 22000131 is about 4690.4297244496. The cubic root of 22000131 is about 280.2044892268.

Adding to 22000131 its reverse (13100022), we get a palindrome (35100153).

The spelling of 22000131 in words is "twenty-two million, one hundred thirty-one", and thus it is an aban number.