12010000212 has 72 divisors (see below), whose sum is σ = 34805237376. Its totient is φ = 3420581184.

The previous prime is 12010000133. The next prime is 12010000241. The reversal of 12010000212 is 21200001021.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12010000194 and 12010000203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4713 + ... + 155055.

Almost surely, 2^12010000212 is an apocalyptic number.

12010000212 is a gapful number since it is divisible by the number (12) 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 12010000212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17402618688).

12010000212 is an abundant number, since it is smaller than the sum of its proper divisors (22795237164).

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

12010000212 is a wasteful number, since it uses less digits than its factorization.

12010000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150677 (or 150672 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12010000212 its reverse (21200001021), we get a palindrome (33210001233).

The spelling of 12010000212 in words is "twelve billion, ten million, two hundred twelve", and thus it is an aban number.