122211324421 has 4 divisors (see below), whose sum is σ = 122212032012. Its totient is φ = 122210616832.

The previous prime is 122211324407. The next prime is 122211324503. The reversal of 122211324421 is 124423112221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 95704228321 + 26507096100 = 309361^2 + 162810^2 .

It is a cyclic number.

It is not a de Polignac number, because 122211324421 - 2¹³ = 122211316229 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 (122211324721) 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, 95295 + ... + 503491.

It is an arithmetic number, because the mean of its divisors is an integer number (30553008003).

Almost surely, 2^122211324421 is an apocalyptic number.

It is an amenable number.

122211324421 is a deficient number, since it is larger than the sum of its proper divisors (707591).

122211324421 is an equidigital number, since it uses as much as digits as its factorization.

122211324421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707590.

The product of its digits is 1536, while the sum is 25.

Adding to 122211324421 its reverse (124423112221), we get a palindrome (246634436642).

The spelling of 122211324421 in words is "one hundred twenty-two billion, two hundred eleven million, three hundred twenty-four thousand, four hundred twenty-one".