122312213221 has 8 divisors (see below), whose sum is σ = 133435613088. Its totient is φ = 111189498000.

The previous prime is 122312213201. The next prime is 122312213239.

122312213221 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122312213221 - 2³⁵ = 87952474853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122312213192 and 122312213201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122312213201) 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 7 ways as a sum of consecutive naturals, for example, 246766 + ... + 552736.

It is an arithmetic number, because the mean of its divisors is an integer number (16679451636).

Almost surely, 2^122312213221 is an apocalyptic number.

122312213221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122312213221 is a deficient number, since it is larger than the sum of its proper divisors (11123399867).

122312213221 is a wasteful number, since it uses less digits than its factorization.

122312213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342323.

The product of its digits is 576, while the sum is 22.

It can be divided in two parts, 122312 and 213221, that added together give a palindrome (335533).

The spelling of 122312213221 in words is "one hundred twenty-two billion, three hundred twelve million, two hundred thirteen thousand, two hundred twenty-one".