102221012101111 has 2 divisors, whose sum is σ = 102221012101112. Its totient is φ = 102221012101110.

The previous prime is 102221012101049. The next prime is 102221012101129. The reversal of 102221012101111 is 111101210122201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102221012101111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102221012201111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51110506050555 + 51110506050556.

It is an arithmetic number, because the mean of its divisors is an integer number (51110506050556).

Almost surely, 2^{102221012101111} is an apocalyptic number.

102221012101111 is a deficient number, since it is larger than the sum of its proper divisors (1).

102221012101111 is an equidigital number, since it uses as much as digits as its factorization.

102221012101111 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 102221012101111 its reverse (111101210122201), we get a palindrome (213322222223312).

The spelling of 102221012101111 in words is "one hundred two trillion, two hundred twenty-one billion, twelve million, one hundred one thousand, one hundred eleven".