111202221213 has 24 divisors (see below), whose sum is σ = 163835748960. Its totient is φ = 72661721760.

The previous prime is 111202221199. The next prime is 111202221223. The reversal of 111202221213 is 312122202111.

It is not a de Polignac number, because 111202221213 - 2⁴ = 111202221197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111202221223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202503 + ... + 513236.

It is an arithmetic number, because the mean of its divisors is an integer number (6826489540).

Almost surely, 2^111202221213 is an apocalyptic number.

It is an amenable number.

111202221213 is a deficient number, since it is larger than the sum of its proper divisors (52633527747).

111202221213 is a wasteful number, since it uses less digits than its factorization.

111202221213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716089 (or 716086 counting only the distinct ones).

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

Adding to 111202221213 its reverse (312122202111), we get a palindrome (423324423324).

The spelling of 111202221213 in words is "one hundred eleven billion, two hundred two million, two hundred twenty-one thousand, two hundred thirteen".