2122345677889 has 16 divisors (see below), whose sum is σ = 2234791722240. Its totient is φ = 2012885562240.

The previous prime is 2122345677871. The next prime is 2122345677901. The reversal of 2122345677889 is 9887765432212.

It is a cyclic number.

It is not a de Polignac number, because 2122345677889 - 2⁵ = 2122345677857 is a prime.

It is a super-4 number, since 4×2122345677889⁴ (a number of 50 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2122345677889.

It is not an unprimeable number, because it can be changed into a prime (2122345677839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1162792 + ... + 2365750.

It is an arithmetic number, because the mean of its divisors is an integer number (139674482640).

Almost surely, 2^{2122345677889} is an apocalyptic number.

It is an amenable number.

2122345677889 is a deficient number, since it is larger than the sum of its proper divisors (112446044351).

2122345677889 is a wasteful number, since it uses less digits than its factorization.

2122345677889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204200.

The product of its digits is 81285120, while the sum is 64.

The spelling of 2122345677889 in words is "two trillion, one hundred twenty-two billion, three hundred forty-five million, six hundred seventy-seven thousand, eight hundred eighty-nine".