2221331308 has 36 divisors (see below), whose sum is σ = 4583970552. Its totient is φ = 938952000.

The previous prime is 2221331293. The next prime is 2221331309. The reversal of 2221331308 is 8031331222.

It is not an unprimeable number, because it can be changed into a prime (2221331309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63318 + ... + 91933.

Almost surely, 2^2221331308 is an apocalyptic number.

2221331308 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2221331308 is an abundant number, since it is smaller than the sum of its proper divisors (2362639244).

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

2221331308 is a wasteful number, since it uses less digits than its factorization.

2221331308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155342 (or 155333 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2221331308 is about 47131.0015594831. The cubic root of 2221331308 is about 1304.7814665164.

The spelling of 2221331308 in words is "two billion, two hundred twenty-one million, three hundred thirty-one thousand, three hundred eight".