211021001121099 has 16 divisors (see below), whose sum is σ = 320828309397792. Its totient is φ = 122220308341248.

The previous prime is 211021001121089. The next prime is 211021001121143. The reversal of 211021001121099 is 990121100120112.

It is not a de Polignac number, because 211021001121099 - 2⁷ = 211021001120971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211021001121019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159141025824 + ... + 159141027149.

It is an arithmetic number, because the mean of its divisors is an integer number (20051769337362).

Almost surely, 2^{211021001121099} is an apocalyptic number.

211021001121099 is a deficient number, since it is larger than the sum of its proper divisors (109807308276693).

211021001121099 is a wasteful number, since it uses less digits than its factorization.

211021001121099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318282053006.

The product of its (nonzero) digits is 648, while the sum is 30.

The spelling of 211021001121099 in words is "two hundred eleven trillion, twenty-one billion, one million, one hundred twenty-one thousand, ninety-nine".