101216887 has 2 divisors, whose sum is σ = 101216888. Its totient is φ = 101216886.

The previous prime is 101216879. The next prime is 101216903. The reversal of 101216887 is 788612101.

It is a weak prime.

It is an emirp because it is prime and its reverse (788612101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101216887 - 2³ = 101216879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101216807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50608443 + 50608444.

It is an arithmetic number, because the mean of its divisors is an integer number (50608444).

Almost surely, 2^101216887 is an apocalyptic number.

101216887 is a deficient number, since it is larger than the sum of its proper divisors (1).

101216887 is an equidigital number, since it uses as much as digits as its factorization.

101216887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 34.

The square root of 101216887 is about 10060.6603659998. The cubic root of 101216887 is about 466.0340605803.

Adding to 101216887 its reverse (788612101), we get a palindrome (889828988).

The spelling of 101216887 in words is "one hundred one million, two hundred sixteen thousand, eight hundred eighty-seven".