122985611 has 4 divisors (see below), whose sum is σ = 140554992. Its totient is φ = 105416232.

The previous prime is 122985593. The next prime is 122985617. The reversal of 122985611 is 116589221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122985611 - 2¹⁸ = 122723467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122985617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8784680 + ... + 8784693.

It is an arithmetic number, because the mean of its divisors is an integer number (35138748).

Almost surely, 2^122985611 is an apocalyptic number.

122985611 is a deficient number, since it is larger than the sum of its proper divisors (17569381).

122985611 is an equidigital number, since it uses as much as digits as its factorization.

122985611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17569380.

The product of its digits is 8640, while the sum is 35.

The square root of 122985611 is about 11089.8877812176. The cubic root of 122985611 is about 497.2995898257.

The spelling of 122985611 in words is "one hundred twenty-two million, nine hundred eighty-five thousand, six hundred eleven".