122895011189 has 4 divisors (see below), whose sum is σ = 124111793580. Its totient is φ = 121678228800.

The previous prime is 122895011179. The next prime is 122895011201. The reversal of 122895011189 is 981110598221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70680476164 + 52214535025 = 265858^2 + 228505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122895011189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122895011159) 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, 608391044 + ... + 608391245.

It is an arithmetic number, because the mean of its divisors is an integer number (31027948395).

Almost surely, 2^122895011189 is an apocalyptic number.

It is an amenable number.

122895011189 is a deficient number, since it is larger than the sum of its proper divisors (1216782391).

122895011189 is a wasteful number, since it uses less digits than its factorization.

122895011189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216782390.

The product of its (nonzero) digits is 103680, while the sum is 47.

The spelling of 122895011189 in words is "one hundred twenty-two billion, eight hundred ninety-five million, eleven thousand, one hundred eighty-nine".