102221112211211 has 16 divisors (see below), whose sum is σ = 117016400966400. Its totient is φ = 87473895785568.

The previous prime is 102221112211177. The next prime is 102221112211289. The reversal of 102221112211211 is 112112211122201.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102221112211211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102221112210211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409318100 + ... + 409567758.

It is an arithmetic number, because the mean of its divisors is an integer number (7313525060400).

Almost surely, 2^{102221112211211} is an apocalyptic number.

102221112211211 is a deficient number, since it is larger than the sum of its proper divisors (14795288755189).

102221112211211 is an equidigital number, since it uses as much as digits as its factorization.

102221112211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345698.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 102221112211211 its reverse (112112211122201), we get a palindrome (214333323333412).

The spelling of 102221112211211 in words is "one hundred two trillion, two hundred twenty-one billion, one hundred twelve million, two hundred eleven thousand, two hundred eleven".