111313012133221 has 4 divisors (see below), whose sum is σ = 117171591719200. Its totient is φ = 105454432547244.

The previous prime is 111313012133209. The next prime is 111313012133237. The reversal of 111313012133221 is 122331210313111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111313012133221 - 2¹⁵ = 111313012100453 is a prime.

It is a super-2 number, since 2×111313012133221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111313012133201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2929289792961 + ... + 2929289792998.

It is an arithmetic number, because the mean of its divisors is an integer number (29292897929800).

Almost surely, 2^{111313012133221} is an apocalyptic number.

It is an amenable number.

111313012133221 is a deficient number, since it is larger than the sum of its proper divisors (5858579585979).

111313012133221 is an equidigital number, since it uses as much as digits as its factorization.

111313012133221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5858579585978.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 111313012133221 its reverse (122331210313111), we get a palindrome (233644222446332).

The spelling of 111313012133221 in words is "one hundred eleven trillion, three hundred thirteen billion, twelve million, one hundred thirty-three thousand, two hundred twenty-one".