22321222212 has 24 divisors (see below), whose sum is σ = 53490497536. Its totient is φ = 7239315168.

The previous prime is 22321222199. The next prime is 22321222303. The reversal of 22321222212 is 21222212322.

It is a super-3 number, since 3×22321222212³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25136068 + ... + 25136955.

Almost surely, 2^22321222212 is an apocalyptic number.

It is an amenable number.

22321222212 is an abundant number, since it is smaller than the sum of its proper divisors (31169275324).

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

22321222212 is a wasteful number, since it uses less digits than its factorization.

22321222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50273067 (or 50273065 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

Adding to 22321222212 its reverse (21222212322), we get a palindrome (43543434534).

The spelling of 22321222212 in words is "twenty-two billion, three hundred twenty-one million, two hundred twenty-two thousand, two hundred twelve".