122980169971 has 4 divisors (see below), whose sum is σ = 123368120352. Its totient is φ = 122592219592.

The previous prime is 122980169959. The next prime is 122980170017. The reversal of 122980169971 is 179961089221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179961089221 = 5153 ⋅34923557.

It is a cyclic number.

It is not a de Polignac number, because 122980169971 - 2¹⁹ = 122979645683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122980169911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193974715 + ... + 193975348.

It is an arithmetic number, because the mean of its divisors is an integer number (30842030088).

Almost surely, 2^122980169971 is an apocalyptic number.

122980169971 is a deficient number, since it is larger than the sum of its proper divisors (387950381).

122980169971 is an equidigital number, since it uses as much as digits as its factorization.

122980169971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387950380.

The product of its (nonzero) digits is 979776, while the sum is 55.

The spelling of 122980169971 in words is "one hundred twenty-two billion, nine hundred eighty million, one hundred sixty-nine thousand, nine hundred seventy-one".