2219721722197 has 32 divisors (see below), whose sum is σ = 2690048793600. Its totient is φ = 1789183468800.

The previous prime is 2219721722191. The next prime is 2219721722233. The reversal of 2219721722197 is 7912271279122.

It is not a de Polignac number, because 2219721722197 - 2²⁷ = 2219587504469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219721722191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176008422 + ... + 176021032.

It is an arithmetic number, because the mean of its divisors is an integer number (84064024800).

Almost surely, 2^{2219721722197} is an apocalyptic number.

It is an amenable number.

2219721722197 is a deficient number, since it is larger than the sum of its proper divisors (470327071403).

2219721722197 is a wasteful number, since it uses less digits than its factorization.

2219721722197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22297.

The product of its digits is 889056, while the sum is 52.

The spelling of 2219721722197 in words is "two trillion, two hundred nineteen billion, seven hundred twenty-one million, seven hundred twenty-two thousand, one hundred ninety-seven".