211021102099 has 2 divisors, whose sum is σ = 211021102100. Its totient is φ = 211021102098.

The previous prime is 211021102021. The next prime is 211021102133. The reversal of 211021102099 is 990201120112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211021102099 - 2¹⁹ = 211020577811 is a prime.

It is not a weakly prime, because it can be changed into another prime (211021102399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105510551049 + 105510551050.

It is an arithmetic number, because the mean of its divisors is an integer number (105510551050).

Almost surely, 2^211021102099 is an apocalyptic number.

211021102099 is a deficient number, since it is larger than the sum of its proper divisors (1).

211021102099 is an equidigital number, since it uses as much as digits as its factorization.

211021102099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 211021102099 in words is "two hundred eleven billion, twenty-one million, one hundred two thousand, ninety-nine".