210012221230309 has 2 divisors, whose sum is σ = 210012221230310. Its totient is φ = 210012221230308.

The previous prime is 210012221230283. The next prime is 210012221230379. The reversal of 210012221230309 is 903032122210012.

210012221230309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108870380205409 + 101141841024900 = 10434097^2 + 10056930^2 .

It is a cyclic number.

It is not a de Polignac number, because 210012221230309 - 2²⁹ = 210011684359397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210012221230379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105006110615154 + 105006110615155.

It is an arithmetic number, because the mean of its divisors is an integer number (105006110615155).

Almost surely, 2^{210012221230309} is an apocalyptic number.

It is an amenable number.

210012221230309 is a deficient number, since it is larger than the sum of its proper divisors (1).

210012221230309 is an equidigital number, since it uses as much as digits as its factorization.

210012221230309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 210012221230309 in words is "two hundred ten trillion, twelve billion, two hundred twenty-one million, two hundred thirty thousand, three hundred nine".