113222011221 has 24 divisors (see below), whose sum is σ = 184371324480. Its totient is φ = 68619398760.

The previous prime is 113222011193. The next prime is 113222011297. The reversal of 113222011221 is 122110222311.

It is not a de Polignac number, because 113222011221 - 2⁶ = 113222011157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113222011194 and 113222011203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113222061221) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 17324865 + ... + 17331398.

It is an arithmetic number, because the mean of its divisors is an integer number (7682138520).

Almost surely, 2^113222011221 is an apocalyptic number.

113222011221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113222011221 is a deficient number, since it is larger than the sum of its proper divisors (71149313259).

113222011221 is a wasteful number, since it uses less digits than its factorization.

113222011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34656294 (or 34656277 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 113222011221 its reverse (122110222311), we get a palindrome (235332233532).

The spelling of 113222011221 in words is "one hundred thirteen billion, two hundred twenty-two million, eleven thousand, two hundred twenty-one".