211021001121089 has 2 divisors, whose sum is σ = 211021001121090. Its totient is φ = 211021001121088.

The previous prime is 211021001121059. The next prime is 211021001121143. The reversal of 211021001121089 is 980121100120112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210135175681600 + 885825439489 = 14496040^2 + 941183^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211021001121089 is a prime.

It is not a weakly prime, because it can be changed into another prime (211021001121019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105510500560544 + 105510500560545.

It is an arithmetic number, because the mean of its divisors is an integer number (105510500560545).

Almost surely, 2^{211021001121089} is an apocalyptic number.

It is an amenable number.

211021001121089 is a deficient number, since it is larger than the sum of its proper divisors (1).

211021001121089 is an equidigital number, since it uses as much as digits as its factorization.

211021001121089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 29.

The spelling of 211021001121089 in words is "two hundred eleven trillion, twenty-one billion, one million, one hundred twenty-one thousand, eighty-nine".