22121132 has 24 divisors (see below), whose sum is σ = 42420672. Its totient is φ = 10010000.

The previous prime is 22121089. The next prime is 22121137. The reversal of 22121132 is 23112122.

It is a happy number.

It is a super-2 number, since 2×22121132² = 978688961922848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22121137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10043 + ... + 12045.

It is an arithmetic number, because the mean of its divisors is an integer number (1767528).

Almost surely, 2^22121132 is an apocalyptic number.

22121132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22121132 is a deficient number, since it is larger than the sum of its proper divisors (20299540).

22121132 is a wasteful number, since it uses less digits than its factorization.

22121132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269 (or 2267 counting only the distinct ones).

The product of its digits is 48, while the sum is 14.

The square root of 22121132 is about 4703.3107488236. The cubic root of 22121132 is about 280.7172597081.

Adding to 22121132 its reverse (23112122), we get a palindrome (45233254).

The spelling of 22121132 in words is "twenty-two million, one hundred twenty-one thousand, one hundred thirty-two".