2205216870 has 32 divisors (see below), whose sum is σ = 5297398272. Its totient is φ = 587515872.

The previous prime is 2205216851. The next prime is 2205216883. The reversal of 2205216870 is 786125022.

It is a congruent number.

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, 232 + ... + 66411.

It is an arithmetic number, because the mean of its divisors is an integer number (165543696).

Almost surely, 2^2205216870 is an apocalyptic number.

2205216870 is an abundant number, since it is smaller than the sum of its proper divisors (3092181402).

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

2205216870 is a wasteful number, since it uses less digits than its factorization.

2205216870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67756.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 2205216870 is about 46959.7366900625. The cubic root of 2205216870 is about 1301.6186681305.

The spelling of 2205216870 in words is "two billion, two hundred five million, two hundred sixteen thousand, eight hundred seventy".