10221522 has 32 divisors (see below), whose sum is σ = 22591872. Its totient is φ = 3066624.

The previous prime is 10221521. The next prime is 10221551. The reversal of 10221522 is 22512201.

It is not an unprimeable number, because it can be changed into a prime (10221521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168 + ... + 4524.

It is an arithmetic number, because the mean of its divisors is an integer number (705996).

Almost surely, 2^10221522 is an apocalyptic number.

10221522 is an abundant number, since it is smaller than the sum of its proper divisors (12370350).

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

10221522 is a wasteful number, since it uses less digits than its factorization.

10221522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4402.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 10221522 is about 3197.1115088467. Note that the first 3 decimals coincide. The cubic root of 10221522 is about 217.0227134726.

Adding to 10221522 its reverse (22512201), we get a palindrome (32733723).

The spelling of 10221522 in words is "ten million, two hundred twenty-one thousand, five hundred twenty-two".