2221370163 has 28 divisors (see below), whose sum is σ = 3334349520. Its totient is φ = 1479216816.

The previous prime is 2221370149. The next prime is 2221370167. The reversal of 2221370163 is 3610731222.

2221370163 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2221370163 - 2⁸ = 2221369907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2221370167) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1244970 + ... + 1246752.

Almost surely, 2^2221370163 is an apocalyptic number.

2221370163 is a deficient number, since it is larger than the sum of its proper divisors (1112979357).

2221370163 is an equidigital number, since it uses as much as digits as its factorization.

2221370163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3510 (or 3495 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 2221370163 is about 47131.4137598269. The cubic root of 2221370163 is about 1304.7890741146.

The spelling of 2221370163 in words is "two billion, two hundred twenty-one million, three hundred seventy thousand, one hundred sixty-three".