122010989 has 16 divisors (see below), whose sum is σ = 136440000. Its totient is φ = 108428544.

The previous prime is 122010983. The next prime is 122011031. The reversal of 122010989 is 989010221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 122010989 - 2²⁴ = 105233773 is a prime.

It is a Duffinian number.

122010989 is a modest number, since divided by 10989 gives 122 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122010983) 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, 160799 + ... + 161555.

It is an arithmetic number, because the mean of its divisors is an integer number (8527500).

Almost surely, 2^122010989 is an apocalyptic number.

122010989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

122010989 is a deficient number, since it is larger than the sum of its proper divisors (14429011).

122010989 is a wasteful number, since it uses less digits than its factorization.

122010989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 122010989 is about 11045.8584546426. The cubic root of 122010989 is about 495.9824571601.

The spelling of 122010989 in words is "one hundred twenty-two million, ten thousand, nine hundred eighty-nine".