210012109999 has 2 divisors, whose sum is σ = 210012110000. Its totient is φ = 210012109998.

The previous prime is 210012109961. The next prime is 210012110029. The reversal of 210012109999 is 999901210012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210012109999 - 2¹¹ = 210012107951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210012109939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105006054999 + 105006055000.

It is an arithmetic number, because the mean of its divisors is an integer number (105006055000).

Almost surely, 2^210012109999 is an apocalyptic number.

210012109999 is a deficient number, since it is larger than the sum of its proper divisors (1).

210012109999 is an equidigital number, since it uses as much as digits as its factorization.

210012109999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 43.

The spelling of 210012109999 in words is "two hundred ten billion, twelve million, one hundred nine thousand, nine hundred ninety-nine".