2221911122 has 6 divisors (see below), whose sum is σ = 3332966679. Its totient is φ = 1110922230.

The previous prime is 2221911059. The next prime is 2221911127. The reversal of 2221911122 is 2211191222.

It can be written as a sum of positive squares in only one way, i.e., 1110955561 + 1110955561 = 33331^2 + 33331^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=33331.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221911127) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 49997 + ... + 83327.

Almost surely, 2^2221911122 is an apocalyptic number.

2221911122 is a deficient number, since it is larger than the sum of its proper divisors (1111055557).

2221911122 is an frugal number, since it uses more digits than its factorization.

2221911122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66664 (or 33333 counting only the distinct ones).

The product of its digits is 288, while the sum is 23.

The square root of 2221911122 is about 47137.1522474576. The cubic root of 2221911122 is about 1304.8949817380.

Multiplying 2221911122 by its product of digits (288), we get a square (639910403136 = 799944²).

The spelling of 2221911122 in words is "two billion, two hundred twenty-one million, nine hundred eleven thousand, one hundred twenty-two".