211120999999 has 16 divisors (see below), whose sum is σ = 271138678272. Its totient is φ = 159778146528.

The previous prime is 211120999871. The next prime is 211121000021. The reversal of 211120999999 is 999999021112.

It is not a de Polignac number, because 211120999999 - 2⁷ = 211120999871 is a prime.

211120999999 is a modest number, since divided by 999999 gives 211120 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211120999499) 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, 50432929 + ... + 50437114.

It is an arithmetic number, because the mean of its divisors is an integer number (16946167392).

Almost surely, 2^211120999999 is an apocalyptic number.

211120999999 is a deficient number, since it is larger than the sum of its proper divisors (60017678273).

211120999999 is a wasteful number, since it uses less digits than its factorization.

211120999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100870086.

The product of its (nonzero) digits is 2125764, while the sum is 61.

The spelling of 211120999999 in words is "two hundred eleven billion, one hundred twenty million, nine hundred ninety-nine thousand, nine hundred ninety-nine".