122412621 has 4 divisors (see below), whose sum is σ = 163216832. Its totient is φ = 81608412.

The previous prime is 122412607. The next prime is 122412629. The reversal of 122412621 is 126214221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 122412621 - 2¹¹ = 122410573 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 (122412629) 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 3 ways as a sum of consecutive naturals, for example, 20402101 + ... + 20402106.

It is an arithmetic number, because the mean of its divisors is an integer number (40804208).

Almost surely, 2^122412621 is an apocalyptic number.

It is an amenable number.

122412621 is a deficient number, since it is larger than the sum of its proper divisors (40804211).

122412621 is an equidigital number, since it uses as much as digits as its factorization.

122412621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40804210.

The product of its digits is 384, while the sum is 21.

The square root of 122412621 is about 11064.0237255711. The cubic root of 122412621 is about 496.5260810052.

Adding to 122412621 its reverse (126214221), we get a palindrome (248626842).

The spelling of 122412621 in words is "one hundred twenty-two million, four hundred twelve thousand, six hundred twenty-one".