2220120870 has 64 divisors (see below), whose sum is σ = 5817381120. Its totient is φ = 537776000.

The previous prime is 2220120863. The next prime is 2220120871. The reversal of 2220120870 is 780210222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2220120870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220120871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 625561 + ... + 629099.

It is an arithmetic number, because the mean of its divisors is an integer number (90896580).

Almost surely, 2^2220120870 is an apocalyptic number.

2220120870 is an abundant number, since it is smaller than the sum of its proper divisors (3597260250).

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

2220120870 is a wasteful number, since it uses less digits than its factorization.

2220120870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5461.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 2220120870 is about 47118.1586015413. The cubic root of 2220120870 is about 1304.5444248795.

It can be divided in two parts, 22201 and 20870, that added together give a triangular number (43071 = T₂₉₃).

The spelling of 2220120870 in words is "two billion, two hundred twenty million, one hundred twenty thousand, eight hundred seventy".