122277621 has 12 divisors (see below), whose sum is σ = 167117216. Its totient is φ = 79526880.

The previous prime is 122277619. The next prime is 122277629. The reversal of 122277621 is 126772221.

It is not a de Polignac number, because 122277621 - 2¹ = 122277619 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122277629) 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 11 ways as a sum of consecutive naturals, for example, 7081 + ... + 17166.

Almost surely, 2^122277621 is an apocalyptic number.

It is an amenable number.

122277621 is a deficient number, since it is larger than the sum of its proper divisors (44839595).

122277621 is an equidigital number, since it uses as much as digits as its factorization.

122277621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24332 (or 24291 counting only the distinct ones).

The product of its digits is 4704, while the sum is 30.

The square root of 122277621 is about 11057.9211879991. The cubic root of 122277621 is about 496.3434863328.

The spelling of 122277621 in words is "one hundred twenty-two million, two hundred seventy-seven thousand, six hundred twenty-one".