122120685 has 24 divisors (see below), whose sum is σ = 220881024. Its totient is φ = 62298720.

The previous prime is 122120651. The next prime is 122120729. The reversal of 122120685 is 586021221.

It is a happy number.

It is not a de Polignac number, because 122120685 - 2¹⁰ = 122119661 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 57961 + ... + 60030.

It is an arithmetic number, because the mean of its divisors is an integer number (9203376).

Almost surely, 2^122120685 is an apocalyptic number.

122120685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122120685 is a deficient number, since it is larger than the sum of its proper divisors (98760339).

122120685 is a wasteful number, since it uses less digits than its factorization.

122120685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118025 (or 118022 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 122120685 is about 11050.8228200438. The cubic root of 122120685 is about 496.1310530501.

The spelling of 122120685 in words is "one hundred twenty-two million, one hundred twenty thousand, six hundred eighty-five".