211939202994 has 32 divisors (see below), whose sum is σ = 427881431040. Its totient is φ = 69980963472.

The previous prime is 211939202983. The next prime is 211939203059. The reversal of 211939202994 is 499202939112.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273687 + ... + 706245.

It is an arithmetic number, because the mean of its divisors is an integer number (13371294720).

Almost surely, 2^211939202994 is an apocalyptic number.

211939202994 is an abundant number, since it is smaller than the sum of its proper divisors (215942228046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211939202994 is a wasteful number, since it uses less digits than its factorization.

211939202994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433334.

The product of its (nonzero) digits is 629856, while the sum is 51.

The spelling of 211939202994 in words is "two hundred eleven billion, nine hundred thirty-nine million, two hundred two thousand, nine hundred ninety-four".