2302230021 has 64 divisors (see below), whose sum is σ = 3916405248. Its totient is φ = 1170505728.

The previous prime is 2302229983. The next prime is 2302230037. The reversal of 2302230021 is 1200322032.

It is not a de Polignac number, because 2302230021 - 2⁶ = 2302229957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2302230071) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1140405 + ... + 1142421.

It is an arithmetic number, because the mean of its divisors is an integer number (61193832).

Almost surely, 2^2302230021 is an apocalyptic number.

2302230021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2302230021 is a deficient number, since it is larger than the sum of its proper divisors (1614175227).

2302230021 is a wasteful number, since it uses less digits than its factorization.

2302230021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2302230021 is about 47981.5591764169. The cubic root of 2302230021 is about 1320.4325986835.

Adding to 2302230021 its reverse (1200322032), we get a palindrome (3502552053).

The spelling of 2302230021 in words is "two billion, three hundred two million, two hundred thirty thousand, twenty-one".