113121213222 has 16 divisors (see below), whose sum is σ = 226250502912. Its totient is φ = 37705725000.

The previous prime is 113121213217. The next prime is 113121213263. The reversal of 113121213222 is 222312121311.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 146154 + ... + 497597.

It is an arithmetic number, because the mean of its divisors is an integer number (14140656432).

Almost surely, 2^113121213222 is an apocalyptic number.

113121213222 is an abundant number, since it is smaller than the sum of its proper divisors (113129289690).

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

113121213222 is a wasteful number, since it uses less digits than its factorization.

113121213222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673043.

The product of its digits is 288, while the sum is 21.

Adding to 113121213222 its reverse (222312121311), we get a palindrome (335433334533).

The spelling of 113121213222 in words is "one hundred thirteen billion, one hundred twenty-one million, two hundred thirteen thousand, two hundred twenty-two".