2220311208 has 32 divisors (see below), whose sum is σ = 5668882560. Its totient is φ = 724356480.

The previous prime is 2220311201. The next prime is 2220311209. The reversal of 2220311208 is 8021130222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2220311201) 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, 983053 + ... + 985308.

It is an arithmetic number, because the mean of its divisors is an integer number (177152580).

Almost surely, 2^2220311208 is an apocalyptic number.

It is an amenable number.

2220311208 is an abundant number, since it is smaller than the sum of its proper divisors (3448571352).

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

2220311208 is a wasteful number, since it uses less digits than its factorization.

2220311208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968417 (or 1968413 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 2220311208 is about 47120.1783528034. The cubic root of 2220311208 is about 1304.5817047238.

It can be divided in two parts, 22203 and 11208, that added together give a triangular number (33411 = T₂₅₈).

The spelling of 2220311208 in words is "two billion, two hundred twenty million, three hundred eleven thousand, two hundred eight".