2222778136 has 16 divisors (see below), whose sum is σ = 4169381040. Its totient is φ = 1110943200.

The previous prime is 2222778127. The next prime is 2222778143. The reversal of 2222778136 is 6318772222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34051 + ... + 74866.

It is an arithmetic number, because the mean of its divisors is an integer number (260586315).

Almost surely, 2^2222778136 is an apocalyptic number.

It is an amenable number.

2222778136 is a deficient number, since it is larger than the sum of its proper divisors (1946602904).

2222778136 is a wasteful number, since it uses less digits than its factorization.

2222778136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111474 (or 111470 counting only the distinct ones).

The product of its digits is 112896, while the sum is 40.

The square root of 2222778136 is about 47146.3480664197. The cubic root of 2222778136 is about 1305.0646877600.

The spelling of 2222778136 in words is "two billion, two hundred twenty-two million, seven hundred seventy-eight thousand, one hundred thirty-six".