22121466 has 16 divisors (see below), whose sum is σ = 44292288. Its totient is φ = 7365600.

The previous prime is 22121447. The next prime is 22121483. The reversal of 22121466 is 66412122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6531 + ... + 9321.

It is an arithmetic number, because the mean of its divisors is an integer number (2768268).

Almost surely, 2^22121466 is an apocalyptic number.

22121466 is an abundant number, since it is smaller than the sum of its proper divisors (22170822).

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

22121466 is a wasteful number, since it uses less digits than its factorization.

22121466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4117.

The product of its digits is 1152, while the sum is 24.

The square root of 22121466 is about 4703.3462555929. The cubic root of 22121466 is about 280.7186725215.

Adding to 22121466 its reverse (66412122), we get a palindrome (88533588).

The spelling of 22121466 in words is "twenty-two million, one hundred twenty-one thousand, four hundred sixty-six".