122232122221 has 8 divisors (see below), whose sum is σ = 135860061024. Its totient is φ = 109023504720.

The previous prime is 122232122219. The next prime is 122232122249. The reversal of 122232122221 is 122221232221.

It is a happy number.

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 122232122221 - 2¹ = 122232122219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122232122192 and 122232122201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122232122251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104829711 + ... + 104830876.

It is an arithmetic number, because the mean of its divisors is an integer number (16982507628).

Almost surely, 2^122232122221 is an apocalyptic number.

122232122221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122232122221 is a deficient number, since it is larger than the sum of its proper divisors (13627938803).

122232122221 is a wasteful number, since it uses less digits than its factorization.

122232122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209660651.

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

Adding to 122232122221 its reverse (122221232221), we get a palindrome (244453354442).

Subtracting from 122232122221 its reverse (122221232221), we obtain a square (10890000 = 3300²).

The spelling of 122232122221 in words is "one hundred twenty-two billion, two hundred thirty-two million, one hundred twenty-two thousand, two hundred twenty-one".