22031332212 has 24 divisors (see below), whose sum is σ = 51601910976. Its totient is φ = 7315853248.

The previous prime is 22031332177. The next prime is 22031332231. The reversal of 22031332212 is 21223313022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3487233 + ... + 3493544.

It is an arithmetic number, because the mean of its divisors is an integer number (2150079624).

Almost surely, 2^22031332212 is an apocalyptic number.

It is an amenable number.

22031332212 is an abundant number, since it is smaller than the sum of its proper divisors (29570578764).

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

22031332212 is a wasteful number, since it uses less digits than its factorization.

22031332212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6981047 (or 6981045 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22031332212 its reverse (21223313022), we get a palindrome (43254645234).

The spelling of 22031332212 in words is "twenty-two billion, thirty-one million, three hundred thirty-two thousand, two hundred twelve".