22012213032 has 192 divisors, whose sum is σ = 63838944000. Its totient is φ = 6831931392.

The previous prime is 22012212973. The next prime is 22012213039. The reversal of 22012213032 is 23031221022.

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 = 22012212996 and 22012213014.

It is not an unprimeable number, because it can be changed into a prime (22012213039) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38149128 + ... + 38149704.

It is an arithmetic number, because the mean of its divisors is an integer number (332494500).

Almost surely, 2^22012213032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22012213032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31919472000).

22012213032 is an abundant number, since it is smaller than the sum of its proper divisors (41826730968).

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

22012213032 is a wasteful number, since it uses less digits than its factorization.

22012213032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040 (or 1033 counting only the distinct ones).

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

Adding to 22012213032 its reverse (23031221022), we get a palindrome (45043434054).

The spelling of 22012213032 in words is "twenty-two billion, twelve million, two hundred thirteen thousand, thirty-two".