10111000220987 has 2 divisors, whose sum is σ = 10111000220988. Its totient is φ = 10111000220986.

The previous prime is 10111000220969. The next prime is 10111000221053. The reversal of 10111000220987 is 78902200011101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10111000220987 - 2²⁶ = 10110933112123 is a prime.

It is not a weakly prime, because it can be changed into another prime (10111000220887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055500110493 + 5055500110494.

It is an arithmetic number, because the mean of its divisors is an integer number (5055500110494).

Almost surely, 2^{10111000220987} is an apocalyptic number.

10111000220987 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111000220987 is an equidigital number, since it uses as much as digits as its factorization.

10111000220987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 32.

The spelling of 10111000220987 in words is "ten trillion, one hundred eleven billion, two hundred twenty thousand, nine hundred eighty-seven".