2013402013221 has 4 divisors (see below), whose sum is σ = 2684536017632. Its totient is φ = 1342268008812.

The previous prime is 2013402013169. The next prime is 2013402013237. The reversal of 2013402013221 is 1223102043102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2013402013221 - 2⁶ = 2013402013157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013402013291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335567002201 + ... + 335567002206.

It is an arithmetic number, because the mean of its divisors is an integer number (671134004408).

Almost surely, 2^{2013402013221} is an apocalyptic number.

It is an amenable number.

2013402013221 is a deficient number, since it is larger than the sum of its proper divisors (671134004411).

2013402013221 is an equidigital number, since it uses as much as digits as its factorization.

2013402013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671134004410.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2013402013221 its reverse (1223102043102), we get a palindrome (3236504056323).

The spelling of 2013402013221 in words is "two trillion, thirteen billion, four hundred two million, thirteen thousand, two hundred twenty-one".