22512451245 has 32 divisors (see below), whose sum is σ = 38481646080. Its totient is φ = 11204930880.

The previous prime is 22512451217. The next prime is 22512451249. The reversal of 22512451245 is 54215421522.

It is not a de Polignac number, because 22512451245 - 2¹⁵ = 22512418477 is a prime.

It is a super-2 number, since 2×22512451245² (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 (22512451249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 570391 + ... + 608580.

It is an arithmetic number, because the mean of its divisors is an integer number (1202551440).

Almost surely, 2^22512451245 is an apocalyptic number.

It is an amenable number.

22512451245 is a deficient number, since it is larger than the sum of its proper divisors (15969194835).

22512451245 is a wasteful number, since it uses less digits than its factorization.

22512451245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179065.

The product of its digits is 32000, while the sum is 33.

Adding to 22512451245 its reverse (54215421522), we get a palindrome (76727872767).

The spelling of 22512451245 in words is "twenty-two billion, five hundred twelve million, four hundred fifty-one thousand, two hundred forty-five".