212112011000 has 64 divisors (see below), whose sum is σ = 496921932000. Its totient is φ = 84745689600.

The previous prime is 212112010997. The next prime is 212112011071. The reversal of 212112011000 is 110211212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735536 + ... + 982464.

Almost surely, 2^212112011000 is an apocalyptic number.

212112011000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212112011000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248460966000).

212112011000 is an abundant number, since it is smaller than the sum of its proper divisors (284809921000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212112011000 is a wasteful number, since it uses less digits than its factorization.

212112011000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247809 (or 247795 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 212112011000 its reverse (110211212), we get a palindrome (212222222212).

The spelling of 212112011000 in words is "two hundred twelve billion, one hundred twelve million, eleven thousand".