211200009999999 has 16 divisors (see below), whose sum is σ = 285566784862464. Its totient is φ = 138816628876800.

The previous prime is 211200009999989. The next prime is 211200010000009. The reversal of 211200009999999 is 999999900002112.

211200009999999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (211200009999989) and next prime (211200010000009).

It is not a de Polignac number, because 211200009999999 - 2¹³ = 211200009991807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211200009999989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202118772 + ... + 203161014.

It is an arithmetic number, because the mean of its divisors is an integer number (17847924053904).

Almost surely, 2^{211200009999999} is an apocalyptic number.

211200009999999 is a deficient number, since it is larger than the sum of its proper divisors (74366774862465).

211200009999999 is a wasteful number, since it uses less digits than its factorization.

211200009999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993678.

The product of its (nonzero) digits is 19131876, while the sum is 69.

The spelling of 211200009999999 in words is "two hundred eleven trillion, two hundred billion, nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".