2013141221 has 32 divisors (see below), whose sum is σ = 2527176960. Its totient is φ = 1561296384.

The previous prime is 2013141199. The next prime is 2013141239. The reversal of 2013141221 is 1221413102.

It is a cyclic number.

It is not a de Polignac number, because 2013141221 - 2²⁶ = 1946032357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2013141221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013141521) 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, 1188251 + ... + 1189943.

It is an arithmetic number, because the mean of its divisors is an integer number (78974280).

Almost surely, 2^2013141221 is an apocalyptic number.

It is an amenable number.

2013141221 is a deficient number, since it is larger than the sum of its proper divisors (514035739).

2013141221 is a wasteful number, since it uses less digits than its factorization.

2013141221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2013141221 is about 44868.0423129871. The cubic root of 2013141221 is about 1262.6745115235.

Adding to 2013141221 its reverse (1221413102), we get a palindrome (3234554323).

The spelling of 2013141221 in words is "two billion, thirteen million, one hundred forty-one thousand, two hundred twenty-one".