210221212011093 has 18 divisors (see below), whose sum is σ = 304961686935906. Its totient is φ = 139545983042112.

The previous prime is 210221212011079. The next prime is 210221212011211. The reversal of 210221212011093 is 390110212122012.

210221212011093 is a `hidden beast` number, since 210 + 2 + 212 + 120 + 110 + 9 + 3 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 67973875524 + 210153238135569 = 260718^2 + 14496663^2 .

It is not a de Polignac number, because 210221212011093 - 2⁶ = 210221212011029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210221212012093) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 214637046 + ... + 215614247.

Almost surely, 2^{210221212011093} is an apocalyptic number.

It is an amenable number.

210221212011093 is a deficient number, since it is larger than the sum of its proper divisors (94740474924813).

210221212011093 is an equidigital number, since it uses as much as digits as its factorization.

210221212011093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430251765 (or 430251529 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The spelling of 210221212011093 in words is "two hundred ten trillion, two hundred twenty-one billion, two hundred twelve million, eleven thousand, ninety-three".