113121221122 has 24 divisors (see below), whose sum is σ = 209986649856. Its totient is φ = 44751251376.

The previous prime is 113121221111. The next prime is 113121221153. The reversal of 113121221122 is 221122121311.

It is a self number, because there is not a number n which added to its sum of digits gives 113121221122.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23903218 + ... + 23907949.

It is an arithmetic number, because the mean of its divisors is an integer number (8749443744).

Almost surely, 2^113121221122 is an apocalyptic number.

113121221122 is a deficient number, since it is larger than the sum of its proper divisors (96865428734).

113121221122 is a wasteful number, since it uses less digits than its factorization.

113121221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47811202 (or 47811189 counting only the distinct ones).

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

Adding to 113121221122 its reverse (221122121311), we get a palindrome (334243342433).

The spelling of 113121221122 in words is "one hundred thirteen billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-two".