12012001012212 has 96 divisors (see below), whose sum is σ = 30055585714560. Its totient is φ = 3720487710720.

The previous prime is 12012001012201. The next prime is 12012001012303. The reversal of 12012001012212 is 21221010021021.

It is a super-2 number, since 2×12012001012212² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12012001012191 and 12012001012200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11500663 + ... + 12501569.

It is an arithmetic number, because the mean of its divisors is an integer number (313079017860).

Almost surely, 2^{12012001012212} is an apocalyptic number.

12012001012212 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 12012001012212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15027792857280).

12012001012212 is an abundant number, since it is smaller than the sum of its proper divisors (18043584702348).

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

12012001012212 is a wasteful number, since it uses less digits than its factorization.

12012001012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001681 (or 1001679 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12012001012212 its reverse (21221010021021), we get a palindrome (33233011033233).

The spelling of 12012001012212 in words is "twelve trillion, twelve billion, one million, twelve thousand, two hundred twelve".