22515131214 has 24 divisors (see below), whose sum is σ = 51350300040. Its totient is φ = 7110041328.

The previous prime is 22515131207. The next prime is 22515131231. The reversal of 22515131214 is 41213151522.

It is a happy number.

22515131214 is a `hidden beast` number, since 2 + 2 + 515 + 131 + 2 + 14 = 666.

It is a super-2 number, since 2×22515131214² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 32916517 + ... + 32917200.

It is an arithmetic number, because the mean of its divisors is an integer number (2139595835).

Almost surely, 2^22515131214 is an apocalyptic number.

22515131214 is an abundant number, since it is smaller than the sum of its proper divisors (28835168826).

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

22515131214 is a wasteful number, since it uses less digits than its factorization.

22515131214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65833744 (or 65833741 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

Adding to 22515131214 its reverse (41213151522), we get a palindrome (63728282736).

The spelling of 22515131214 in words is "twenty-two billion, five hundred fifteen million, one hundred thirty-one thousand, two hundred fourteen".