22121351514 has 12 divisors (see below), whose sum is σ = 47929594986. Its totient is φ = 7373783832.

The previous prime is 22121351477. The next prime is 22121351531. The reversal of 22121351514 is 41515312122.

It is a happy number.

22121351514 is a `hidden beast` number, since 2 + 2 + 12 + 135 + 1 + 514 = 666.

It can be written as a sum of positive squares in only one way, i.e., 17178558489 + 4942793025 = 131067^2 + 70305^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 614481969 + ... + 614482004.

Almost surely, 2^22121351514 is an apocalyptic number.

22121351514 is an abundant number, since it is smaller than the sum of its proper divisors (25808243472).

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

22121351514 is a wasteful number, since it uses less digits than its factorization.

22121351514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228963981 (or 1228963978 counting only the distinct ones).

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

Adding to 22121351514 its reverse (41515312122), we get a palindrome (63636663636).

The spelling of 22121351514 in words is "twenty-two billion, one hundred twenty-one million, three hundred fifty-one thousand, five hundred fourteen".