10221132 has 12 divisors (see below), whose sum is σ = 23849336. Its totient is φ = 3407040.

The previous prime is 10221091. The next prime is 10221149. The reversal of 10221132 is 23112201.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×10221132² = 208943078722848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 851761 = 10221132 / (1 + 0 + 2 + 2 + 1 + 1 + 3 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425869 + ... + 425892.

Almost surely, 2^10221132 is an apocalyptic number.

10221132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10221132 is an abundant number, since it is smaller than the sum of its proper divisors (13628204).

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

10221132 is a wasteful number, since it uses less digits than its factorization.

10221132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851768 (or 851766 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 10221132 is about 3197.0505157098. The cubic root of 10221132 is about 217.0199532857.

Adding to 10221132 its reverse (23112201), we get a palindrome (33333333).

The spelling of 10221132 in words is "ten million, two hundred twenty-one thousand, one hundred thirty-two".