12001012212 has 24 divisors (see below), whose sum is σ = 32002699456. Its totient is φ = 3428860608.

The previous prime is 12001012207. The next prime is 12001012241. The reversal of 12001012212 is 21221010021.

It is a super-2 number, since 2×12001012212² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71434513 + ... + 71434680.

Almost surely, 2^12001012212 is an apocalyptic number.

12001012212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12001012212 is an abundant number, since it is smaller than the sum of its proper divisors (20001687244).

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

12001012212 is a wasteful number, since it uses less digits than its factorization.

12001012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142869207 (or 142869205 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12001012212 its reverse (21221010021), we get a palindrome (33222022233).

The spelling of 12001012212 in words is "twelve billion, one million, twelve thousand, two hundred twelve".