22131110 has 16 divisors (see below), whose sum is σ = 42179616. Its totient is φ = 8331648.

The previous prime is 22131101. The next prime is 22131113. The reversal of 22131110 is 1113122.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22131091 and 22131100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64922 + ... + 65261.

It is an arithmetic number, because the mean of its divisors is an integer number (2636226).

Almost surely, 2^22131110 is an apocalyptic number.

22131110 is a deficient number, since it is larger than the sum of its proper divisors (20048506).

22131110 is a wasteful number, since it uses less digits than its factorization.

22131110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130207.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 22131110 is about 4704.3713713949. The cubic root of 22131110 is about 280.7594603179.

Adding to 22131110 its reverse (1113122), we get a palindrome (23244232).

The spelling of 22131110 in words is "twenty-two million, one hundred thirty-one thousand, one hundred ten".