122171707 has 16 divisors (see below), whose sum is σ = 148201920. Its totient is φ = 98316288.

The previous prime is 122171671. The next prime is 122171711. The reversal of 122171707 is 707171221.

It is a de Polignac number, because none of the positive numbers 2^k-122171707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122171207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59563 + ... + 61579.

It is an arithmetic number, because the mean of its divisors is an integer number (9262620).

Almost surely, 2^122171707 is an apocalyptic number.

122171707 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

122171707 is a deficient number, since it is larger than the sum of its proper divisors (26030213).

122171707 is a wasteful number, since it uses less digits than its factorization.

122171707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550.

The product of its (nonzero) digits is 1372, while the sum is 28.

The square root of 122171707 is about 11053.1310948527. The cubic root of 122171707 is about 496.2001379177.

It can be divided in two parts, 12217 and 1707, that added together give a square (13924 = 118²).

The spelling of 122171707 in words is "one hundred twenty-two million, one hundred seventy-one thousand, seven hundred seven".