8885631221 has 8 divisors (see below), whose sum is σ = 9037708800. Its totient is φ = 8733602880.

The previous prime is 8885631211. The next prime is 8885631253. The reversal of 8885631221 is 1221365888.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8885631221 - 2¹⁰ = 8885630197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8885631211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692141 + ... + 704861.

It is an arithmetic number, because the mean of its divisors is an integer number (1129713600).

Almost surely, 2^8885631221 is an apocalyptic number.

It is an amenable number.

8885631221 is a deficient number, since it is larger than the sum of its proper divisors (152077579).

8885631221 is a wasteful number, since it uses less digits than its factorization.

8885631221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24619.

The product of its digits is 184320, while the sum is 44.

The square root of 8885631221 is about 94263.6261821070. The cubic root of 8885631221 is about 2071.2352480931.

The spelling of 8885631221 in words is "eight billion, eight hundred eighty-five million, six hundred thirty-one thousand, two hundred twenty-one".