113112121222 has 32 divisors (see below), whose sum is σ = 187506789120. Its totient is φ = 50935404960.

The previous prime is 113112121211. The next prime is 113112121277. The reversal of 113112121222 is 222121211311.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 113112121222.

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 15 ways as a sum of consecutive naturals, for example, 254529 + ... + 539452.

It is an arithmetic number, because the mean of its divisors is an integer number (5859587160).

Almost surely, 2^113112121222 is an apocalyptic number.

113112121222 is a deficient number, since it is larger than the sum of its proper divisors (74394667898).

113112121222 is a wasteful number, since it uses less digits than its factorization.

113112121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794188.

The product of its digits is 96, while the sum is 19.

Adding to 113112121222 its reverse (222121211311), we get a palindrome (335233332533).

The spelling of 113112121222 in words is "one hundred thirteen billion, one hundred twelve million, one hundred twenty-one thousand, two hundred twenty-two".