102110021121211 has 2 divisors, whose sum is σ = 102110021121212. Its totient is φ = 102110021121210.

The previous prime is 102110021121209. The next prime is 102110021121319. The reversal of 102110021121211 is 112121120011201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102110021121211 - 2¹ = 102110021121209 is a prime.

Together with 102110021121209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (102110021127211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51055010560605 + 51055010560606.

It is an arithmetic number, because the mean of its divisors is an integer number (51055010560606).

Almost surely, 2^{102110021121211} is an apocalyptic number.

102110021121211 is a deficient number, since it is larger than the sum of its proper divisors (1).

102110021121211 is an equidigital number, since it uses as much as digits as its factorization.

102110021121211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 102110021121211 its reverse (112121120011201), we get a palindrome (214231141132412).

The spelling of 102110021121211 in words is "one hundred two trillion, one hundred ten billion, twenty-one million, one hundred twenty-one thousand, two hundred eleven".