101216879 has 2 divisors, whose sum is σ = 101216880. Its totient is φ = 101216878.

The previous prime is 101216851. The next prime is 101216887. The reversal of 101216879 is 978612101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101216879 - 2²⁰ = 100168303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101216809) 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, 50608439 + 50608440.

It is an arithmetic number, because the mean of its divisors is an integer number (50608440).

Almost surely, 2^101216879 is an apocalyptic number.

101216879 is a deficient number, since it is larger than the sum of its proper divisors (1).

101216879 is an equidigital number, since it uses as much as digits as its factorization.

101216879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 35.

The square root of 101216879 is about 10060.6599684116. The cubic root of 101216879 is about 466.0340483021.

The spelling of 101216879 in words is "one hundred one million, two hundred sixteen thousand, eight hundred seventy-nine".