121122889 has 6 divisors (see below), whose sum is σ = 121779854. Its totient is φ = 120469440.

The previous prime is 121122877. The next prime is 121122907. The reversal of 121122889 is 988221121.

It can be written as a sum of positive squares in 3 ways, for example, as 44997264 + 76125625 = 6708^2 + 8725^2 .

It is not a de Polignac number, because 121122889 - 2⁵ = 121122857 is a prime.

It is a super-3 number, since 3×121122889³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121122389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37249 + ... + 40369.

Almost surely, 2^121122889 is an apocalyptic number.

It is an amenable number.

121122889 is a deficient number, since it is larger than the sum of its proper divisors (656965).

121122889 is an frugal number, since it uses more digits than its factorization.

121122889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3515 (or 3318 counting only the distinct ones).

The product of its digits is 4608, while the sum is 34.

The square root of 121122889 is about 11005.5844460892. The cubic root of 121122889 is about 494.7761311255.

The spelling of 121122889 in words is "one hundred twenty-one million, one hundred twenty-two thousand, eight hundred eighty-nine".