12212001012 has 24 divisors (see below), whose sum is σ = 28977631200. Its totient is φ = 4001672416.

The previous prime is 12212000987. The next prime is 12212001031. The reversal of 12212001012 is 21010021221.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8623587 + ... + 8625002.

It is an arithmetic number, because the mean of its divisors is an integer number (1207401300).

Almost surely, 2^12212001012 is an apocalyptic number.

12212001012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12212001012 is an abundant number, since it is smaller than the sum of its proper divisors (16765630188).

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

12212001012 is a wasteful number, since it uses less digits than its factorization.

12212001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17248655 (or 17248653 counting only the distinct ones).

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

Adding to 12212001012 its reverse (21010021221), we get a palindrome (33222022233).

The spelling of 12212001012 in words is "twelve billion, two hundred twelve million, one thousand, twelve".