111210221013 has 32 divisors (see below), whose sum is σ = 161774025600. Its totient is φ = 67712599296.

The previous prime is 111210220981. The next prime is 111210221027. The reversal of 111210221013 is 310122012111.

It is not a de Polignac number, because 111210221013 - 2⁵ = 111210220981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111210220983 and 111210221001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111210221033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12006 + ... + 471767.

It is an arithmetic number, because the mean of its divisors is an integer number (5055438300).

Almost surely, 2^111210221013 is an apocalyptic number.

It is an amenable number.

111210221013 is a deficient number, since it is larger than the sum of its proper divisors (50563804587).

111210221013 is a wasteful number, since it uses less digits than its factorization.

111210221013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483941.

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

Adding to 111210221013 its reverse (310122012111), we get a palindrome (421332233124).

The spelling of 111210221013 in words is "one hundred eleven billion, two hundred ten million, two hundred twenty-one thousand, thirteen".