2142222079 has 16 divisors (see below), whose sum is σ = 2226420000. Its totient is φ = 2059706880.

The previous prime is 2142222073. The next prime is 2142222097. The reversal of 2142222079 is 9702222412.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2142222079 - 2⁷ = 2142221951 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2142222079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142222073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1382197 + ... + 1383745.

It is an arithmetic number, because the mean of its divisors is an integer number (139151250).

Almost surely, 2^2142222079 is an apocalyptic number.

2142222079 is a deficient number, since it is larger than the sum of its proper divisors (84197921).

2142222079 is a wasteful number, since it uses less digits than its factorization.

2142222079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 2142222079 is about 46284.1450066867. The cubic root of 2142222079 is about 1289.1046165283.

The spelling of 2142222079 in words is "two billion, one hundred forty-two million, two hundred twenty-two thousand, seventy-nine".