102111122211211 has 2 divisors, whose sum is σ = 102111122211212. Its totient is φ = 102111122211210.

The previous prime is 102111122211191. The next prime is 102111122211221. The reversal of 102111122211211 is 112112221111201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102111122211211 - 2¹³ = 102111122203019 is a prime.

It is not a weakly prime, because it can be changed into another prime (102111122211221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51055561105605 + 51055561105606.

It is an arithmetic number, because the mean of its divisors is an integer number (51055561105606).

Almost surely, 2^{102111122211211} is an apocalyptic number.

102111122211211 is a deficient number, since it is larger than the sum of its proper divisors (1).

102111122211211 is an equidigital number, since it uses as much as digits as its factorization.

102111122211211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 102111122211211 its reverse (112112221111201), we get a palindrome (214223343322412).

The spelling of 102111122211211 in words is "one hundred two trillion, one hundred eleven billion, one hundred twenty-two million, two hundred eleven thousand, two hundred eleven".