113100121221 has 32 divisors (see below), whose sum is σ = 163108646400. Its totient is φ = 69466351680.

The previous prime is 113100121193. The next prime is 113100121261. The reversal of 113100121221 is 122121001311.

It is not a de Polignac number, because 113100121221 - 2⁶ = 113100121157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113100121221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113100121261) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 4583206 + ... + 4607816.

It is an arithmetic number, because the mean of its divisors is an integer number (5097145200).

Almost surely, 2^113100121221 is an apocalyptic number.

It is an amenable number.

113100121221 is a deficient number, since it is larger than the sum of its proper divisors (50008525179).

113100121221 is a wasteful number, since it uses less digits than its factorization.

113100121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26849.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 113100121221 its reverse (122121001311), we get a palindrome (235221122532).

The spelling of 113100121221 in words is "one hundred thirteen billion, one hundred million, one hundred twenty-one thousand, two hundred twenty-one".