2113320221 has 8 divisors (see below), whose sum is σ = 2128495320. Its totient is φ = 2098199872.

The previous prime is 2113320211. The next prime is 2113320229. The reversal of 2113320221 is 1220233112.

It can be written as a sum of positive squares in 4 ways, for example, as 544288900 + 1569031321 = 23330^2 + 39611^2 .

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 2113320221 - 2¹⁴ = 2113303837 is a prime.

It is a super-2 number, since 2×2113320221² = 8932244712974977682, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2113320221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113320229) 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, 65411 + ... + 92223.

It is an arithmetic number, because the mean of its divisors is an integer number (266061915).

Almost surely, 2^2113320221 is an apocalyptic number.

It is an amenable number.

2113320221 is a deficient number, since it is larger than the sum of its proper divisors (15175099).

2113320221 is a wasteful number, since it uses less digits than its factorization.

2113320221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27375.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2113320221 is about 45970.8627393483. The cubic root of 2113320221 is about 1283.2810155917.

Adding to 2113320221 its reverse (1220233112), we get a palindrome (3333553333).

The spelling of 2113320221 in words is "two billion, one hundred thirteen million, three hundred twenty thousand, two hundred twenty-one".