221010223211 has 2 divisors, whose sum is σ = 221010223212. Its totient is φ = 221010223210.

The previous prime is 221010223207. The next prime is 221010223223. The reversal of 221010223211 is 112322010122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221010223211 - 2² = 221010223207 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221010223211.

It is not a weakly prime, because it can be changed into another prime (221010823211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110505111605 + 110505111606.

It is an arithmetic number, because the mean of its divisors is an integer number (110505111606).

Almost surely, 2^221010223211 is an apocalyptic number.

221010223211 is a deficient number, since it is larger than the sum of its proper divisors (1).

221010223211 is an equidigital number, since it uses as much as digits as its factorization.

221010223211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 221010223211 its reverse (112322010122), we get a palindrome (333332233333).

The spelling of 221010223211 in words is "two hundred twenty-one billion, ten million, two hundred twenty-three thousand, two hundred eleven".