2219991068 has 12 divisors (see below), whose sum is σ = 3890015640. Its totient is φ = 1108558032.

The previous prime is 2219991061. The next prime is 2219991071. The reversal of 2219991068 is 8601999122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219991061) 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, 355898 + ... + 362081.

It is an arithmetic number, because the mean of its divisors is an integer number (324167970).

Almost surely, 2^2219991068 is an apocalyptic number.

It is an amenable number.

2219991068 is a deficient number, since it is larger than the sum of its proper divisors (1670024572).

2219991068 is a wasteful number, since it uses less digits than its factorization.

2219991068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718756 (or 718754 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 2219991068 is about 47116.7811718925. The cubic root of 2219991068 is about 1304.5190004717.

The spelling of 2219991068 in words is "two billion, two hundred nineteen million, nine hundred ninety-one thousand, sixty-eight".