22421132 has 6 divisors (see below), whose sum is σ = 39236988. Its totient is φ = 11210564.

The previous prime is 22421123. The next prime is 22421167. The reversal of 22421132 is 23112422.

It is a super-2 number, since 2×22421132² = 1005414320322848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22421132.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2802638 + ... + 2802645.

It is an arithmetic number, because the mean of its divisors is an integer number (6539498).

Almost surely, 2^22421132 is an apocalyptic number.

It is an amenable number.

22421132 is a deficient number, since it is larger than the sum of its proper divisors (16815856).

22421132 is a wasteful number, since it uses less digits than its factorization.

22421132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605287 (or 5605285 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 22421132 is about 4735.0957751665. The cubic root of 22421132 is about 281.9805663720.

Adding to 22421132 its reverse (23112422), we get a palindrome (45533554).

The spelling of 22421132 in words is "twenty-two million, four hundred twenty-one thousand, one hundred thirty-two".