211020021012193 has 2 divisors, whose sum is σ = 211020021012194. Its totient is φ = 211020021012192.

The previous prime is 211020021012169. The next prime is 211020021012301. The reversal of 211020021012193 is 391210120020112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133952568668944 + 77067452343249 = 11573788^2 + 8778807^2 .

It is a cyclic number.

It is not a de Polignac number, because 211020021012193 - 2²⁵ = 211019987457761 is a prime.

It is not a weakly prime, because it can be changed into another prime (211020021082193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105510010506096 + 105510010506097.

It is an arithmetic number, because the mean of its divisors is an integer number (105510010506097).

Almost surely, 2^{211020021012193} is an apocalyptic number.

It is an amenable number.

211020021012193 is a deficient number, since it is larger than the sum of its proper divisors (1).

211020021012193 is an equidigital number, since it uses as much as digits as its factorization.

211020021012193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 211020021012193 in words is "two hundred eleven trillion, twenty billion, twenty-one million, twelve thousand, one hundred ninety-three".