102102220210987 has 2 divisors, whose sum is σ = 102102220210988. Its totient is φ = 102102220210986.

The previous prime is 102102220210937. The next prime is 102102220211011. The reversal of 102102220210987 is 789012022201201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102102220210987 is a prime.

It is not a weakly prime, because it can be changed into another prime (102102220210937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051110105493 + 51051110105494.

It is an arithmetic number, because the mean of its divisors is an integer number (51051110105494).

Almost surely, 2^{102102220210987} is an apocalyptic number.

102102220210987 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102220210987 is an equidigital number, since it uses as much as digits as its factorization.

102102220210987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 102102220210987 in words is "one hundred two trillion, one hundred two billion, two hundred twenty million, two hundred ten thousand, nine hundred eighty-seven".