2122222194 has 40 divisors (see below), whose sum is σ = 4761521820. Its totient is φ = 706489344.

The previous prime is 2122222187. The next prime is 2122222199. The reversal of 2122222194 is 4912222212.

It can be written as a sum of positive squares in 2 ways, for example, as 1550390625 + 571831569 = 39375^2 + 23913^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2122222199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 122962 + ... + 139154.

Almost surely, 2^2122222194 is an apocalyptic number.

2122222194 is an abundant number, since it is smaller than the sum of its proper divisors (2639299626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2122222194 is a wasteful number, since it uses less digits than its factorization.

2122222194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17016 (or 17007 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 2122222194 is about 46067.5828973043. The cubic root of 2122222194 is about 1285.0803532951.

The spelling of 2122222194 in words is "two billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred ninety-four".