22154522312 has 24 divisors (see below), whose sum is σ = 44980893090. Its totient is φ = 10225163520.

The previous prime is 22154522293. The next prime is 22154522317. The reversal of 22154522312 is 21322545122.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 16714869796 + 5439652516 = 129286^2 + 73754^2 .

It is not an unprimeable number, because it can be changed into a prime (22154522317) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8191889 + ... + 8194592.

Almost surely, 2^22154522312 is an apocalyptic number.

It is an amenable number.

22154522312 is an abundant number, since it is smaller than the sum of its proper divisors (22826370778).

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

22154522312 is a wasteful number, since it uses less digits than its factorization.

22154522312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16386513 (or 16386496 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The spelling of 22154522312 in words is "twenty-two billion, one hundred fifty-four million, five hundred twenty-two thousand, three hundred twelve".