2213143021 has 4 divisors (see below), whose sum is σ = 2230569472. Its totient is φ = 2195716572.

The previous prime is 2213142989. The next prime is 2213143067. The reversal of 2213143021 is 1203413122.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 2213143021 - 2⁵ = 2213142989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2213143021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213140021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8713035 + ... + 8713288.

It is an arithmetic number, because the mean of its divisors is an integer number (557642368).

Almost surely, 2^2213143021 is an apocalyptic number.

It is an amenable number.

2213143021 is a deficient number, since it is larger than the sum of its proper divisors (17426451).

2213143021 is a wasteful number, since it uses less digits than its factorization.

2213143021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17426450.

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

The square root of 2213143021 is about 47044.0540451182. The cubic root of 2213143021 is about 1303.1762610026.

Adding to 2213143021 its reverse (1203413122), we get a palindrome (3416556143).

The spelling of 2213143021 in words is "two billion, two hundred thirteen million, one hundred forty-three thousand, twenty-one".