20331222132211 has 2 divisors, whose sum is σ = 20331222132212. Its totient is φ = 20331222132210.

The previous prime is 20331222132191. The next prime is 20331222132289. The reversal of 20331222132211 is 11223122213302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20331222132211 - 2⁷ = 20331222132083 is a prime.

It is not a weakly prime, because it can be changed into another prime (20331222130211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165611066105 + 10165611066106.

It is an arithmetic number, because the mean of its divisors is an integer number (10165611066106).

Almost surely, 2^{20331222132211} is an apocalyptic number.

20331222132211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20331222132211 is an equidigital number, since it uses as much as digits as its factorization.

20331222132211 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 25.

Adding to 20331222132211 its reverse (11223122213302), we get a palindrome (31554344345513).

The spelling of 20331222132211 in words is "twenty trillion, three hundred thirty-one billion, two hundred twenty-two million, one hundred thirty-two thousand, two hundred eleven".