211122212821994 has 8 divisors (see below), whose sum is σ = 318961616494080. Its totient is φ = 104801673990636.

The previous prime is 211122212821979. The next prime is 211122212821999. The reversal of 211122212821994 is 499128212221112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (211122212821999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379716209834 + ... + 379716210389.

It is an arithmetic number, because the mean of its divisors is an integer number (39870202061760).

Almost surely, 2^{211122212821994} is an apocalyptic number.

211122212821994 is a deficient number, since it is larger than the sum of its proper divisors (107839403672086).

211122212821994 is a wasteful number, since it uses less digits than its factorization.

211122212821994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759432420364.

The product of its digits is 165888, while the sum is 47.

The spelling of 211122212821994 in words is "two hundred eleven trillion, one hundred twenty-two billion, two hundred twelve million, eight hundred twenty-one thousand, nine hundred ninety-four".