22531153412 has 6 divisors (see below), whose sum is σ = 39429518478. Its totient is φ = 11265576704.

The previous prime is 22531153409. The next prime is 22531153481. The reversal of 22531153412 is 21435113522.

It can be written as a sum of positive squares in only one way, i.e., 19896795136 + 2634358276 = 141056^2 + 51326^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2816394173 + ... + 2816394180.

It is an arithmetic number, because the mean of its divisors is an integer number (6571586413).

Almost surely, 2^22531153412 is an apocalyptic number.

It is an amenable number.

22531153412 is a deficient number, since it is larger than the sum of its proper divisors (16898365066).

22531153412 is a wasteful number, since it uses less digits than its factorization.

22531153412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5632788357 (or 5632788355 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

Adding to 22531153412 its reverse (21435113522), we get a palindrome (43966266934).

The spelling of 22531153412 in words is "twenty-two billion, five hundred thirty-one million, one hundred fifty-three thousand, four hundred twelve".