2013220203121 has 16 divisors (see below), whose sum is σ = 2126747750400. Its totient is φ = 1900457855568.

The previous prime is 2013220203119. The next prime is 2013220203143. The reversal of 2013220203121 is 1213020223102.

It is a cyclic number.

It is not a de Polignac number, because 2013220203121 - 2¹ = 2013220203119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2013220203821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8636320 + ... + 8866366.

It is an arithmetic number, because the mean of its divisors is an integer number (132921734400).

Almost surely, 2^{2013220203121} is an apocalyptic number.

It is an amenable number.

2013220203121 is a deficient number, since it is larger than the sum of its proper divisors (113527547279).

2013220203121 is a wasteful number, since it uses less digits than its factorization.

2013220203121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231708.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2013220203121 its reverse (1213020223102), we get a palindrome (3226240426223).

The spelling of 2013220203121 in words is "two trillion, thirteen billion, two hundred twenty million, two hundred three thousand, one hundred twenty-one".