212011109999 has 8 divisors (see below), whose sum is σ = 236192748960. Its totient is φ = 188954198496.

The previous prime is 212011109993. The next prime is 212011110029. The reversal of 212011109999 is 999901110212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212011109999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011109993) 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, 281181467 + ... + 281182220.

It is an arithmetic number, because the mean of its divisors is an integer number (29524093620).

Almost surely, 2^212011109999 is an apocalyptic number.

212011109999 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

212011109999 is a deficient number, since it is larger than the sum of its proper divisors (24181638961).

212011109999 is a wasteful number, since it uses less digits than its factorization.

212011109999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562363729.

The product of its (nonzero) digits is 26244, while the sum is 44.

The spelling of 212011109999 in words is "two hundred twelve billion, eleven million, one hundred nine thousand, nine hundred ninety-nine".