213220223311 has 2 divisors, whose sum is σ = 213220223312. Its totient is φ = 213220223310.

The previous prime is 213220223273. The next prime is 213220223353. The reversal of 213220223311 is 113322022312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213220223311 - 2¹⁵ = 213220190543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213220223011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106610111655 + 106610111656.

It is an arithmetic number, because the mean of its divisors is an integer number (106610111656).

Almost surely, 2^213220223311 is an apocalyptic number.

213220223311 is a deficient number, since it is larger than the sum of its proper divisors (1).

213220223311 is an equidigital number, since it uses as much as digits as its factorization.

213220223311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 213220223311 its reverse (113322022312), we get a palindrome (326542245623).

The spelling of 213220223311 in words is "two hundred thirteen billion, two hundred twenty million, two hundred twenty-three thousand, three hundred eleven".