2013220221 has 16 divisors (see below), whose sum is σ = 2867750400. Its totient is φ = 1252527408.

The previous prime is 2013220219. The next prime is 2013220273. The reversal of 2013220221 is 1220223102.

It is a happy number.

It is not a de Polignac number, because 2013220221 - 2¹ = 2013220219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2013220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013220201) 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, 259761 + ... + 267398.

It is an arithmetic number, because the mean of its divisors is an integer number (179234400).

Almost surely, 2^2013220221 is an apocalyptic number.

It is an amenable number.

2013220221 is a deficient number, since it is larger than the sum of its proper divisors (854530179).

2013220221 is a wasteful number, since it uses less digits than its factorization.

2013220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527248.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2013220221 is about 44868.9226636878. The cubic root of 2013220221 is about 1262.6910279971.

Adding to 2013220221 its reverse (1220223102), we get a palindrome (3233443323).

The spelling of 2013220221 in words is "two billion, thirteen million, two hundred twenty thousand, two hundred twenty-one".