2221919373 has 4 divisors (see below), whose sum is σ = 2962559168. Its totient is φ = 1481279580.

The previous prime is 2221919311. The next prime is 2221919377. The reversal of 2221919373 is 3739191222.

2221919373 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2221919373 - 2²⁰ = 2220870797 is a prime.

It is a super-2 number, since 2×2221919373² = 9873851400225426258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221919377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370319893 + ... + 370319898.

It is an arithmetic number, because the mean of its divisors is an integer number (740639792).

Almost surely, 2^2221919373 is an apocalyptic number.

It is an amenable number.

2221919373 is a deficient number, since it is larger than the sum of its proper divisors (740639795).

2221919373 is an equidigital number, since it uses as much as digits as its factorization.

2221919373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740639794.

The product of its digits is 40824, while the sum is 39.

The square root of 2221919373 is about 47137.2397685736. The cubic root of 2221919373 is about 1304.8965969654.

The spelling of 2221919373 in words is "two billion, two hundred twenty-one million, nine hundred nineteen thousand, three hundred seventy-three".