211930111101 has 8 divisors (see below), whose sum is σ = 282609277344. Its totient is φ = 141268842800.

The previous prime is 211930111069. The next prime is 211930111121. The reversal of 211930111101 is 101111039112.

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

It is a cyclic number.

It is not a de Polignac number, because 211930111101 - 2⁵ = 211930111069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211930111121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4446831 + ... + 4494236.

It is an arithmetic number, because the mean of its divisors is an integer number (35326159668).

Almost surely, 2^211930111101 is an apocalyptic number.

It is an amenable number.

211930111101 is a deficient number, since it is larger than the sum of its proper divisors (70679166243).

211930111101 is an equidigital number, since it uses as much as digits as its factorization.

211930111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8948971.

The product of its (nonzero) digits is 54, while the sum is 21.

The spelling of 211930111101 in words is "two hundred eleven billion, nine hundred thirty million, one hundred eleven thousand, one hundred one".