2168078122 has 16 divisors (see below), whose sum is σ = 3817157760. Its totient is φ = 904063248.

The previous prime is 2168078117. The next prime is 2168078123. The reversal of 2168078122 is 2218708612.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (2168078123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2092222 + ... + 2093257.

It is an arithmetic number, because the mean of its divisors is an integer number (238572360).

Almost surely, 2^2168078122 is an apocalyptic number.

2168078122 is a deficient number, since it is larger than the sum of its proper divisors (1649079638).

2168078122 is a wasteful number, since it uses less digits than its factorization.

2168078122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4185525.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 2168078122 is about 46562.6258065415. The cubic root of 2168078122 is about 1294.2702709876.

The spelling of 2168078122 in words is "two billion, one hundred sixty-eight million, seventy-eight thousand, one hundred twenty-two".