122213312221 has 48 divisors (see below), whose sum is σ = 167888040768. Its totient is φ = 87449241600.

The previous prime is 122213312219. The next prime is 122213312231.

122213312221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 122213312221 - 2¹ = 122213312219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122213312192 and 122213312201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122213312201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1307166 + ... + 1397536.

It is an arithmetic number, because the mean of its divisors is an integer number (3497667516).

Almost surely, 2^122213312221 is an apocalyptic number.

122213312221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122213312221 is a deficient number, since it is larger than the sum of its proper divisors (45674728547).

122213312221 is a wasteful number, since it uses less digits than its factorization.

122213312221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90602 (or 90595 counting only the distinct ones).

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

It can be divided in two parts, 122213 and 312221, that added together give a palindrome (434434).

The spelling of 122213312221 in words is "one hundred twenty-two billion, two hundred thirteen million, three hundred twelve thousand, two hundred twenty-one".