122016407 has 4 divisors (see below), whose sum is σ = 122164776. Its totient is φ = 121868040.

The previous prime is 122016373. The next prime is 122016437. The reversal of 122016407 is 704610221.

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 122016407 - 2²⁰ = 120967831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122016437) 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, 72944 + ... + 74597.

It is an arithmetic number, because the mean of its divisors is an integer number (30541194).

Almost surely, 2^122016407 is an apocalyptic number.

122016407 is a deficient number, since it is larger than the sum of its proper divisors (148369).

122016407 is an equidigital number, since it uses as much as digits as its factorization.

122016407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148368.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 122016407 is about 11046.1037022110. The cubic root of 122016407 is about 495.9897985567.

Adding to 122016407 its reverse (704610221), we get a palindrome (826626628).

The spelling of 122016407 in words is "one hundred twenty-two million, sixteen thousand, four hundred seven".