122106889 has 2 divisors, whose sum is σ = 122106890. Its totient is φ = 122106888.

The previous prime is 122106883. The next prime is 122106947. The reversal of 122106889 is 988601221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96432400 + 25674489 = 9820^2 + 5067^2 .

It is a cyclic number.

It is not a de Polignac number, because 122106889 - 2⁹ = 122106377 is a prime.

It is not a weakly prime, because it can be changed into another prime (122106883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61053444 + 61053445.

It is an arithmetic number, because the mean of its divisors is an integer number (61053445).

Almost surely, 2^122106889 is an apocalyptic number.

It is an amenable number.

122106889 is a deficient number, since it is larger than the sum of its proper divisors (1).

122106889 is an equidigital number, since it uses as much as digits as its factorization.

122106889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 122106889 is about 11050.1985955004. The cubic root of 122106889 is about 496.1123696693.

The spelling of 122106889 in words is "one hundred twenty-two million, one hundred six thousand, eight hundred eighty-nine".