22110321312 has 72 divisors (see below), whose sum is σ = 66574842516. Its totient is φ = 6936569856.

The previous prime is 22110321293. The next prime is 22110321347. The reversal of 22110321312 is 21312301122.

22110321312 is a `hidden beast` number, since 2 + 21 + 10 + 321 + 312 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22080771216 + 29550096 = 148596^2 + 5436^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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 11 ways as a sum of consecutive naturals, for example, 2253103 + ... + 2262894.

Almost surely, 2^22110321312 is an apocalyptic number.

It is an amenable number.

22110321312 is an abundant number, since it is smaller than the sum of its proper divisors (44464521204).

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

22110321312 is a wasteful number, since it uses less digits than its factorization.

22110321312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4516030 (or 4516019 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 22110321312 its reverse (21312301122), we get a palindrome (43422622434).

The spelling of 22110321312 in words is "twenty-two billion, one hundred ten million, three hundred twenty-one thousand, three hundred twelve".