2221659522 has 32 divisors (see below), whose sum is σ = 4964319360. Its totient is φ = 736458480.

The previous prime is 2221659491. The next prime is 2221659571. The reversal of 2221659522 is 2259561222.

It is a happy number.

2221659522 is a `hidden beast` number, since 22 + 21 + 6 + 595 + 22 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103878 + ... + 123425.

It is an arithmetic number, because the mean of its divisors is an integer number (155134980).

Almost surely, 2^2221659522 is an apocalyptic number.

2221659522 is an abundant number, since it is smaller than the sum of its proper divisors (2742659838).

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

2221659522 is a wasteful number, since it uses less digits than its factorization.

2221659522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227495 (or 227489 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 2221659522 is about 47134.4833640934. The cubic root of 2221659522 is about 1304.8457262470.

The spelling of 2221659522 in words is "two billion, two hundred twenty-one million, six hundred fifty-nine thousand, five hundred twenty-two".