122421321213 has 16 divisors (see below), whose sum is σ = 173001461760. Its totient is φ = 76737217536.

The previous prime is 122421321199. The next prime is 122421321223. The reversal of 122421321213 is 312123124221.

It is not a de Polignac number, because 122421321213 - 2⁵ = 122421321181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122421321223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1138045 + ... + 1240962.

It is an arithmetic number, because the mean of its divisors is an integer number (10812591360).

Almost surely, 2^122421321213 is an apocalyptic number.

It is an amenable number.

122421321213 is a deficient number, since it is larger than the sum of its proper divisors (50580140547).

122421321213 is a wasteful number, since it uses less digits than its factorization.

122421321213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380036.

The product of its digits is 1152, while the sum is 24.

Adding to 122421321213 its reverse (312123124221), we get a palindrome (434544445434).

The spelling of 122421321213 in words is "one hundred twenty-two billion, four hundred twenty-one million, three hundred twenty-one thousand, two hundred thirteen".