22033213212 has 24 divisors (see below), whose sum is σ = 52380848016. Its totient is φ = 7205830528.

The previous prime is 22033213129. The next prime is 22033213231. The reversal of 22033213212 is 21231233022.

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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17321073 + ... + 17322344.

It is an arithmetic number, because the mean of its divisors is an integer number (2182535334).

Almost surely, 2^22033213212 is an apocalyptic number.

It is an amenable number.

22033213212 is an abundant number, since it is smaller than the sum of its proper divisors (30347634804).

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

22033213212 is a wasteful number, since it uses less digits than its factorization.

22033213212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34643477 (or 34643475 counting only the distinct ones).

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

Adding to 22033213212 its reverse (21231233022), we get a palindrome (43264446234).

The spelling of 22033213212 in words is "twenty-two billion, thirty-three million, two hundred thirteen thousand, two hundred twelve".