121622685 has 16 divisors (see below), whose sum is σ = 196525440. Its totient is φ = 64222400.

The previous prime is 121622681. The next prime is 121622707. The reversal of 121622685 is 586226121.

It is not a de Polignac number, because 121622685 - 2² = 121622681 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121622681) 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, 38625 + ... + 41654.

It is an arithmetic number, because the mean of its divisors is an integer number (12282840).

Almost surely, 2^121622685 is an apocalyptic number.

121622685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121622685 is a deficient number, since it is larger than the sum of its proper divisors (74902755).

121622685 is a wasteful number, since it uses less digits than its factorization.

121622685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80388.

The product of its digits is 11520, while the sum is 33.

The square root of 121622685 is about 11028.2675430006. The cubic root of 121622685 is about 495.4557378164.

The spelling of 121622685 in words is "one hundred twenty-one million, six hundred twenty-two thousand, six hundred eighty-five".