213232200121 has 2 divisors, whose sum is σ = 213232200122. Its totient is φ = 213232200120.

The previous prime is 213232200119. The next prime is 213232200131. The reversal of 213232200121 is 121002232312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118284405625 + 94947794496 = 343925^2 + 308136^2 .

It is a cyclic number.

It is not a de Polignac number, because 213232200121 - 2¹ = 213232200119 is a prime.

Together with 213232200119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (213232200101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106616100060 + 106616100061.

It is an arithmetic number, because the mean of its divisors is an integer number (106616100061).

Almost surely, 2^213232200121 is an apocalyptic number.

It is an amenable number.

213232200121 is a deficient number, since it is larger than the sum of its proper divisors (1).

213232200121 is an equidigital number, since it uses as much as digits as its factorization.

213232200121 is an evil number, because the sum of its binary digits is even.

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

Adding to 213232200121 its reverse (121002232312), we get a palindrome (334234432433).

The spelling of 213232200121 in words is "two hundred thirteen billion, two hundred thirty-two million, two hundred thousand, one hundred twenty-one".