22131003222 has 40 divisors (see below), whose sum is σ = 49599472032. Its totient is φ = 7375568400.

The previous prime is 22131003211. The next prime is 22131003253. The reversal of 22131003222 is 22230013122.

It is a super-2 number, since 2×22131003222² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22131003195 and 22131003204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1122772 + ... + 1142312.

Almost surely, 2^22131003222 is an apocalyptic number.

22131003222 is an abundant number, since it is smaller than the sum of its proper divisors (27468468810).

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

22131003222 is a wasteful number, since it uses less digits than its factorization.

22131003222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26546 (or 26537 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22131003222 its reverse (22230013122), we get a palindrome (44361016344).

The spelling of 22131003222 in words is "twenty-two billion, one hundred thirty-one million, three thousand, two hundred twenty-two".