122222132221 has 16 divisors (see below), whose sum is σ = 143944358400. Its totient is φ = 103724552400.

The previous prime is 122222132209. The next prime is 122222132239. The reversal of 122222132221 is 122231222221.

It is a happy number.

It is not a de Polignac number, because 122222132221 - 2⁵ = 122222132189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122222132192 and 122222132201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122222132521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1729381 + ... + 1798666.

It is an arithmetic number, because the mean of its divisors is an integer number (8996522400).

Almost surely, 2^122222132221 is an apocalyptic number.

It is an amenable number.

122222132221 is a deficient number, since it is larger than the sum of its proper divisors (21722226179).

122222132221 is an equidigital number, since it uses as much as digits as its factorization.

122222132221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3528169 (or 3528155 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

Adding to 122222132221 its reverse (122231222221), we get a palindrome (244453354442).

The spelling of 122222132221 in words is "one hundred twenty-two billion, two hundred twenty-two million, one hundred thirty-two thousand, two hundred twenty-one".