2111211020099 has 2 divisors, whose sum is σ = 2111211020100. Its totient is φ = 2111211020098.

The previous prime is 2111211020077. The next prime is 2111211020153. The reversal of 2111211020099 is 9900201121112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2111211020099 - 2⁸ = 2111211019843 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111211820099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055605510049 + 1055605510050.

It is an arithmetic number, because the mean of its divisors is an integer number (1055605510050).

Almost surely, 2^{2111211020099} is an apocalyptic number.

2111211020099 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111211020099 is an equidigital number, since it uses as much as digits as its factorization.

2111211020099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 2111211020099 in words is "two trillion, one hundred eleven billion, two hundred eleven million, twenty thousand, ninety-nine".