2102213231 has 2 divisors, whose sum is σ = 2102213232. Its totient is φ = 2102213230.

The previous prime is 2102213209. The next prime is 2102213233. The reversal of 2102213231 is 1323122012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2102213231 - 2⁶ = 2102213167 is a prime.

It is a super-2 number, since 2×2102213231² = 8838600937182918722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2102213233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102213233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051106615 + 1051106616.

It is an arithmetic number, because the mean of its divisors is an integer number (1051106616).

Almost surely, 2^2102213231 is an apocalyptic number.

2102213231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102213231 is an equidigital number, since it uses as much as digits as its factorization.

2102213231 is an evil number, because the sum of its binary digits is even.

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

The square root of 2102213231 is about 45849.8989202812. The cubic root of 2102213231 is about 1281.0288828303.

Adding to 2102213231 its reverse (1323122012), we get a palindrome (3425335243).

The spelling of 2102213231 in words is "two billion, one hundred two million, two hundred thirteen thousand, two hundred thirty-one".