113101221 has 8 divisors (see below), whose sum is σ = 159672384. Its totient is φ = 70965440.

The previous prime is 113101217. The next prime is 113101231. The reversal of 113101221 is 122101311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113101221 - 2² = 113101217 is a prime.

It is a super-3 number, since 3×113101221³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113101197 and 113101206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113101201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1108785 + ... + 1108886.

It is an arithmetic number, because the mean of its divisors is an integer number (19959048).

Almost surely, 2^113101221 is an apocalyptic number.

It is an amenable number.

113101221 is a deficient number, since it is larger than the sum of its proper divisors (46571163).

113101221 is a wasteful number, since it uses less digits than its factorization.

113101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217691.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 113101221 is about 10634.9057823753. The cubic root of 113101221 is about 483.6031241567.

Adding to 113101221 its reverse (122101311), we get a palindrome (235202532).

The spelling of 113101221 in words is "one hundred thirteen million, one hundred one thousand, two hundred twenty-one".