2122208138 has 8 divisors (see below), whose sum is σ = 3183548832. Its totient is φ = 1061025196.

The previous prime is 2122208119. The next prime is 2122208161. The reversal of 2122208138 is 8318022212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2122208138.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3581 + ... + 65247.

It is an arithmetic number, because the mean of its divisors is an integer number (397943604).

Almost surely, 2^2122208138 is an apocalyptic number.

2122208138 is a deficient number, since it is larger than the sum of its proper divisors (1061340694).

2122208138 is a wasteful number, since it uses less digits than its factorization.

2122208138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78876.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 2122208138 is about 46067.4303385809. The cubic root of 2122208138 is about 1285.0775161543.

The spelling of 2122208138 in words is "two billion, one hundred twenty-two million, two hundred eight thousand, one hundred thirty-eight".