22131010 has 32 divisors (see below), whose sum is σ = 45748800. Its totient is φ = 7623360.

The previous prime is 22131001. The next prime is 22131017. The reversal of 22131010 is 1013122.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (22131017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3205 + ... + 7384.

It is an arithmetic number, because the mean of its divisors is an integer number (1429650).

Almost surely, 2^22131010 is an apocalyptic number.

22131010 is an abundant number, since it is smaller than the sum of its proper divisors (23617790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22131010 is a wasteful number, since it uses less digits than its factorization.

22131010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10626.

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

The square root of 22131010 is about 4704.3607429703. The cubic root of 22131010 is about 280.7590374443.

Adding to 22131010 its reverse (1013122), we get a palindrome (23144132).

It can be divided in two parts, 2213 and 1010, that added together give a palindrome (3223).

The spelling of 22131010 in words is "twenty-two million, one hundred thirty-one thousand, ten".