1111210220999 has 2 divisors, whose sum is σ = 1111210221000. Its totient is φ = 1111210220998.

The previous prime is 1111210220971. The next prime is 1111210221013. The reversal of 1111210220999 is 9990220121111.

It is a strong prime.

It is an emirp because it is prime and its reverse (9990220121111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1111210220999 - 2²⁸ = 1110941785543 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111210220699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555605110499 + 555605110500.

It is an arithmetic number, because the mean of its divisors is an integer number (555605110500).

Almost surely, 2^{1111210220999} is an apocalyptic number.

1111210220999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111210220999 is an equidigital number, since it uses as much as digits as its factorization.

1111210220999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 38.

The spelling of 1111210220999 in words is "one trillion, one hundred eleven billion, two hundred ten million, two hundred twenty thousand, nine hundred ninety-nine".