22121514 has 24 divisors (see below), whose sum is σ = 48046752. Its totient is φ = 7355880.

The previous prime is 22121513. The next prime is 22121521. The reversal of 22121514 is 41512122.

It is a super-2 number, since 2×22121514² = 978722763304392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22121513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7587 + ... + 10089.

It is an arithmetic number, because the mean of its divisors is an integer number (2001948).

Almost surely, 2^22121514 is an apocalyptic number.

22121514 is an abundant number, since it is smaller than the sum of its proper divisors (25925238).

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

22121514 is a wasteful number, since it uses less digits than its factorization.

22121514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002 (or 2999 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 22121514 is about 4703.3513583401. The cubic root of 22121514 is about 280.7188755594.

Adding to 22121514 its reverse (41512122), we get a palindrome (63633636).

The spelling of 22121514 in words is "twenty-two million, one hundred twenty-one thousand, five hundred fourteen".