122121102222 has 64 divisors (see below), whose sum is σ = 310318525440. Its totient is φ = 34872653088.

The previous prime is 122121102163. The next prime is 122121102253. The reversal of 122121102222 is 222201121221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122121102195 and 122121102204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 610708 + ... + 785624.

It is an arithmetic number, because the mean of its divisors is an integer number (4848726960).

Almost surely, 2^122121102222 is an apocalyptic number.

122121102222 is an abundant number, since it is smaller than the sum of its proper divisors (188197423218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122121102222 is a wasteful number, since it uses less digits than its factorization.

122121102222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176782 (or 176776 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122121102222 its reverse (222201121221), we get a palindrome (344322223443).

The spelling of 122121102222 in words is "one hundred twenty-two billion, one hundred twenty-one million, one hundred two thousand, two hundred twenty-two".