11212220232211 has 2 divisors, whose sum is σ = 11212220232212. Its totient is φ = 11212220232210.

The previous prime is 11212220232181. The next prime is 11212220232221. The reversal of 11212220232211 is 11223202221211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11212220232211 - 2⁵ = 11212220232179 is a prime.

It is not a weakly prime, because it can be changed into another prime (11212220232221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606110116105 + 5606110116106.

It is an arithmetic number, because the mean of its divisors is an integer number (5606110116106).

Almost surely, 2^{11212220232211} is an apocalyptic number.

11212220232211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212220232211 is an equidigital number, since it uses as much as digits as its factorization.

11212220232211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 11212220232211 its reverse (11223202221211), we get a palindrome (22435422453422).

The spelling of 11212220232211 in words is "eleven trillion, two hundred twelve billion, two hundred twenty million, two hundred thirty-two thousand, two hundred eleven".