202221112122 has 24 divisors (see below), whose sum is σ = 438196449600. Its totient is φ = 67399236360.

The previous prime is 202221112117. The next prime is 202221112183. The reversal of 202221112122 is 221211122202.

It is a happy number.

202221112122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 202221112095 and 202221112104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 489154 + ... + 802317.

It is an arithmetic number, because the mean of its divisors is an integer number (18258185400).

Almost surely, 2^202221112122 is an apocalyptic number.

202221112122 is an abundant number, since it is smaller than the sum of its proper divisors (235975337478).

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

202221112122 is a wasteful number, since it uses less digits than its factorization.

202221112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300178 (or 1300175 counting only the distinct ones).

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

Adding to 202221112122 its reverse (221211122202), we get a palindrome (423432234324).

The spelling of 202221112122 in words is "two hundred two billion, two hundred twenty-one million, one hundred twelve thousand, one hundred twenty-two".