22212131304 has 64 divisors (see below), whose sum is σ = 60690905280. Its totient is φ = 6718464000.

The previous prime is 22212131281. The next prime is 22212131309. The reversal of 22212131304 is 40313121222.

It is a super-2 number, since 2×22212131304² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22212131309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65064 + ... + 220584.

It is an arithmetic number, because the mean of its divisors is an integer number (948295395).

Almost surely, 2^22212131304 is an apocalyptic number.

22212131304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22212131304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30345452640).

22212131304 is an abundant number, since it is smaller than the sum of its proper divisors (38478773976).

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

22212131304 is a wasteful number, since it uses less digits than its factorization.

22212131304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156082 (or 156078 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 22212131304 its reverse (40313121222), we get a palindrome (62525252526).

The spelling of 22212131304 in words is "twenty-two billion, two hundred twelve million, one hundred thirty-one thousand, three hundred four".