213222323201 has 2 divisors, whose sum is σ = 213222323202. Its totient is φ = 213222323200.

The previous prime is 213222323113. The next prime is 213222323233. The reversal of 213222323201 is 102323222312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206410296976 + 6812026225 = 454324^2 + 82535^2 .

It is a cyclic number.

It is not a de Polignac number, because 213222323201 - 2¹⁸ = 213222061057 is a prime.

It is a super-2 number, since 2×213222323201² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (213222323701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106611161600 + 106611161601.

It is an arithmetic number, because the mean of its divisors is an integer number (106611161601).

Almost surely, 2^213222323201 is an apocalyptic number.

It is an amenable number.

213222323201 is a deficient number, since it is larger than the sum of its proper divisors (1).

213222323201 is an equidigital number, since it uses as much as digits as its factorization.

213222323201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 213222323201 its reverse (102323222312), we get a palindrome (315545545513).

The spelling of 213222323201 in words is "two hundred thirteen billion, two hundred twenty-two million, three hundred twenty-three thousand, two hundred one".