102111222111187 has 2 divisors, whose sum is σ = 102111222111188. Its totient is φ = 102111222111186.

The previous prime is 102111222111163. The next prime is 102111222111251. The reversal of 102111222111187 is 781111222111201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102111222111187 is a prime.

It is not a weakly prime, because it can be changed into another prime (102111222112187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51055611055593 + 51055611055594.

It is an arithmetic number, because the mean of its divisors is an integer number (51055611055594).

Almost surely, 2^{102111222111187} is an apocalyptic number.

102111222111187 is a deficient number, since it is larger than the sum of its proper divisors (1).

102111222111187 is an equidigital number, since it uses as much as digits as its factorization.

102111222111187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 31.

Adding to 102111222111187 its reverse (781111222111201), we get a palindrome (883222444222388).

The spelling of 102111222111187 in words is "one hundred two trillion, one hundred eleven billion, two hundred twenty-two million, one hundred eleven thousand, one hundred eighty-seven".