2219720902 has 16 divisors (see below), whose sum is σ = 3806215200. Its totient is φ = 951064128.

The previous prime is 2219720897. The next prime is 2219720911. The reversal of 2219720902 is 2090279122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42658 + ... + 79114.

It is an arithmetic number, because the mean of its divisors is an integer number (237888450).

Almost surely, 2^2219720902 is an apocalyptic number.

2219720902 is a deficient number, since it is larger than the sum of its proper divisors (1586494298).

2219720902 is a wasteful number, since it uses less digits than its factorization.

2219720902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40815.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 2219720902 is about 47113.9141018871. The cubic root of 2219720902 is about 1304.4660796915.

The spelling of 2219720902 in words is "two billion, two hundred nineteen million, seven hundred twenty thousand, nine hundred two".