211120999966 has 16 divisors (see below), whose sum is σ = 318109453200. Its totient is φ = 105084612160.

The previous prime is 211120999871. The next prime is 211121000021. The reversal of 211120999966 is 669999021112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6075810 + ... + 6110458.

It is an arithmetic number, because the mean of its divisors is an integer number (19881840825).

Almost surely, 2^211120999966 is an apocalyptic number.

211120999966 is a deficient number, since it is larger than the sum of its proper divisors (106988453234).

211120999966 is a wasteful number, since it uses less digits than its factorization.

211120999966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48299.

The product of its (nonzero) digits is 944784, while the sum is 55.

The spelling of 211120999966 in words is "two hundred eleven billion, one hundred twenty million, nine hundred ninety-nine thousand, nine hundred sixty-six".