2219216144 has 20 divisors (see below), whose sum is σ = 4308575424. Its totient is φ = 1107325728.

The previous prime is 2219216141. The next prime is 2219216171. The reversal of 2219216144 is 4416129122.

It is a self number, because there is not a number n which added to its sum of digits gives 2219216144.

It is not an unprimeable number, because it can be changed into a prime (2219216141) 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, 134612 + ... + 150195.

Almost surely, 2^2219216144 is an apocalyptic number.

It is an amenable number.

2219216144 is a deficient number, since it is larger than the sum of its proper divisors (2089359280).

2219216144 is a wasteful number, since it uses less digits than its factorization.

2219216144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285302 (or 285296 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 2219216144 is about 47108.5570146232. The cubic root of 2219216144 is about 1304.3671949466.

The spelling of 2219216144 in words is "two billion, two hundred nineteen million, two hundred sixteen thousand, one hundred forty-four".