121222223202 has 16 divisors (see below), whose sum is σ = 244214115552. Its totient is φ = 40112462880.

The previous prime is 121222223183. The next prime is 121222223219. The reversal of 121222223202 is 202322222121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73735324 + ... + 73736967.

It is an arithmetic number, because the mean of its divisors is an integer number (15263382222).

Almost surely, 2^121222223202 is an apocalyptic number.

121222223202 is an abundant number, since it is smaller than the sum of its proper divisors (122991892350).

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

121222223202 is a wasteful number, since it uses less digits than its factorization.

121222223202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147472433.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 121222223202 its reverse (202322222121), we get a palindrome (323544445323).

The spelling of 121222223202 in words is "one hundred twenty-one billion, two hundred twenty-two million, two hundred twenty-three thousand, two hundred two".