12012011210112 has 64 divisors (see below), whose sum is σ = 31951282291200. Its totient is φ = 3998434793984.

The previous prime is 12012011210071. The next prime is 12012011210131. The reversal of 12012011210112 is 21101211021021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×12012011210112² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12012011210091 and 12012011210100.

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, 21477228 + ... + 22029419.

It is an arithmetic number, because the mean of its divisors is an integer number (499238785800).

Almost surely, 2^{12012011210112} is an apocalyptic number.

12012011210112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12012011210112 is an abundant number, since it is smaller than the sum of its proper divisors (19939271081088).

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

12012011210112 is an equidigital number, since it uses as much as digits as its factorization.

12012011210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43507383 (or 43507371 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12012011210112 its reverse (21101211021021), we get a palindrome (33113222231133).

The spelling of 12012011210112 in words is "twelve trillion, twelve billion, eleven million, two hundred ten thousand, one hundred twelve".