2221979122 has 32 divisors (see below), whose sum is σ = 3690086400. Its totient is φ = 995014800.

The previous prime is 2221979099. The next prime is 2221979129. The reversal of 2221979122 is 2219791222.

It is not an unprimeable number, because it can be changed into a prime (2221979129) 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, 991279 + ... + 993517.

It is an arithmetic number, because the mean of its divisors is an integer number (115315200).

Almost surely, 2^2221979122 is an apocalyptic number.

2221979122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2221979122 is a deficient number, since it is larger than the sum of its proper divisors (1468107278).

2221979122 is a wasteful number, since it uses less digits than its factorization.

2221979122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2902.

The product of its digits is 18144, while the sum is 37.

The square root of 2221979122 is about 47137.8735413468. The cubic root of 2221979122 is about 1304.9082933946.

The spelling of 2221979122 in words is "two billion, two hundred twenty-one million, nine hundred seventy-nine thousand, one hundred twenty-two".