22202023212 has 60 divisors (see below), whose sum is σ = 58615218816. Its totient is φ = 7327389600.

The previous prime is 22202023199. The next prime is 22202023223. The reversal of 22202023212 is 21232020222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 306508 + ... + 371955.

Almost surely, 2^22202023212 is an apocalyptic number.

It is an amenable number.

22202023212 is an abundant number, since it is smaller than the sum of its proper divisors (36413195604).

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

22202023212 is a wasteful number, since it uses less digits than its factorization.

22202023212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678580 (or 678569 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22202023212 its reverse (21232020222), we get a palindrome (43434043434).

The spelling of 22202023212 in words is "twenty-two billion, two hundred two million, twenty-three thousand, two hundred twelve".