2130002221 has 2 divisors, whose sum is σ = 2130002222. Its totient is φ = 2130002220.

The previous prime is 2130002183. The next prime is 2130002227. The reversal of 2130002221 is 1222000312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1197921321 + 932080900 = 34611^2 + 30530^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130002221 - 2⁷ = 2130002093 is a prime.

It is a super-2 number, since 2×2130002221² = 9073818922929865682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2130002227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065001110 + 1065001111.

It is an arithmetic number, because the mean of its divisors is an integer number (1065001111).

Almost surely, 2^2130002221 is an apocalyptic number.

It is an amenable number.

2130002221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130002221 is an equidigital number, since it uses as much as digits as its factorization.

2130002221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2130002221 is about 46151.9470986870. The cubic root of 2130002221 is about 1286.6487984295.

Adding to 2130002221 its reverse (1222000312), we get a palindrome (3352002533).

The spelling of 2130002221 in words is "two billion, one hundred thirty million, two thousand, two hundred twenty-one".