20211000110999 has 2 divisors, whose sum is σ = 20211000111000. Its totient is φ = 20211000110998.

The previous prime is 20211000110969. The next prime is 20211000111161. The reversal of 20211000110999 is 99901100011202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20211000110999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20211000110969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105500055499 + 10105500055500.

It is an arithmetic number, because the mean of its divisors is an integer number (10105500055500).

Almost surely, 2^{20211000110999} is an apocalyptic number.

20211000110999 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211000110999 is an equidigital number, since it uses as much as digits as its factorization.

20211000110999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 35.

The spelling of 20211000110999 in words is "twenty trillion, two hundred eleven billion, one hundred ten thousand, nine hundred ninety-nine".