2219495621 has 12 divisors (see below), whose sum is σ = 2717750880. Its totient is φ = 1802296440.

The previous prime is 2219495609. The next prime is 2219495633. The reversal of 2219495621 is 1265949122.

It is an interprime number because it is at equal distance from previous prime (2219495609) and next prime (2219495633).

It is not a de Polignac number, because 2219495621 - 2⁶ = 2219495557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219495651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1191065 + ... + 1192926.

It is an arithmetic number, because the mean of its divisors is an integer number (226479240).

Almost surely, 2^2219495621 is an apocalyptic number.

It is an amenable number.

2219495621 is a deficient number, since it is larger than the sum of its proper divisors (498255259).

2219495621 is a wasteful number, since it uses less digits than its factorization.

2219495621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2384024 (or 2384017 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The square root of 2219495621 is about 47111.5232294605. The cubic root of 2219495621 is about 1304.4219478121.

The spelling of 2219495621 in words is "two billion, two hundred nineteen million, four hundred ninety-five thousand, six hundred twenty-one".