22022055312 has 20 divisors (see below), whose sum is σ = 56890309680. Its totient is φ = 7340685088.

The previous prime is 22022055277. The next prime is 22022055313. The reversal of 22022055312 is 21355022022.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (22022055313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229396362 + ... + 229396457.

It is an arithmetic number, because the mean of its divisors is an integer number (2844515484).

Almost surely, 2^22022055312 is an apocalyptic number.

It is an amenable number.

22022055312 is an abundant number, since it is smaller than the sum of its proper divisors (34868254368).

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

22022055312 is a wasteful number, since it uses less digits than its factorization.

22022055312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458792830 (or 458792824 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 22022055312 its reverse (21355022022), we get a palindrome (43377077334).

The spelling of 22022055312 in words is "twenty-two billion, twenty-two million, fifty-five thousand, three hundred twelve".