22615412312 has 32 divisors (see below), whose sum is σ = 42924000000. Its totient is φ = 11169832608.

The previous prime is 22615412293. The next prime is 22615412317. The reversal of 22615412312 is 21321451622.

It is a super-2 number, since 2×22615412312² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22615412317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170189 + ... + 272387.

It is an arithmetic number, because the mean of its divisors is an integer number (1341375000).

Almost surely, 2^22615412312 is an apocalyptic number.

It is an amenable number.

22615412312 is a deficient number, since it is larger than the sum of its proper divisors (20308587688).

22615412312 is a wasteful number, since it uses less digits than its factorization.

22615412312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102543 (or 102539 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

Adding to 22615412312 its reverse (21321451622), we get a palindrome (43936863934).

The spelling of 22615412312 in words is "twenty-two billion, six hundred fifteen million, four hundred twelve thousand, three hundred twelve".