2140172122 has 16 divisors (see below), whose sum is σ = 3686421600. Its totient is φ = 921605040.

The previous prime is 2140172107. The next prime is 2140172147. The reversal of 2140172122 is 2212710412.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2140172093 and 2140172102.

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 7 ways as a sum of consecutive naturals, for example, 2559597 + ... + 2560432.

It is an arithmetic number, because the mean of its divisors is an integer number (230401350).

Almost surely, 2^2140172122 is an apocalyptic number.

2140172122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2140172122 is a deficient number, since it is larger than the sum of its proper divisors (1546249478).

2140172122 is a wasteful number, since it uses less digits than its factorization.

2140172122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5120061.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 2140172122 is about 46261.9943582202. The cubic root of 2140172122 is about 1288.6932909181.

Adding to 2140172122 its reverse (2212710412), we get a palindrome (4352882534).

The spelling of 2140172122 in words is "two billion, one hundred forty million, one hundred seventy-two thousand, one hundred twenty-two".