111021220013 has 8 divisors (see below), whose sum is σ = 121463094240. Its totient is φ = 100637518480.

The previous prime is 111021219989. The next prime is 111021220039. The reversal of 111021220013 is 310022120111.

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 111021220013 - 2¹⁰ = 111021218989 is a prime.

It is a super-2 number, since 2×111021220013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111021220013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111021220043) 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, 14539178 + ... + 14546811.

It is an arithmetic number, because the mean of its divisors is an integer number (15182886780).

Almost surely, 2^111021220013 is an apocalyptic number.

It is an amenable number.

111021220013 is a deficient number, since it is larger than the sum of its proper divisors (10441874227).

111021220013 is a wasteful number, since it uses less digits than its factorization.

111021220013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29086347.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 111021220013 its reverse (310022120111), we get a palindrome (421043340124).

The spelling of 111021220013 in words is "one hundred eleven billion, twenty-one million, two hundred twenty thousand, thirteen".