12001201212112 has 40 divisors (see below), whose sum is σ = 26595365000000. Its totient is φ = 5139253896192.

The previous prime is 12001201211971. The next prime is 12001201212137. The reversal of 12001201212112 is 21121210210021.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 42755862 + ... + 43035637.

It is an arithmetic number, because the mean of its divisors is an integer number (664884125000).

Almost surely, 2^{12001201212112} is an apocalyptic number.

It is an amenable number.

12001201212112 is an abundant number, since it is smaller than the sum of its proper divisors (14594163787888).

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

12001201212112 is a wasteful number, since it uses less digits than its factorization.

12001201212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85792763 (or 85792757 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12001201212112 its reverse (21121210210021), we get a palindrome (33122411422133).

The spelling of 12001201212112 in words is "twelve trillion, one billion, two hundred one million, two hundred twelve thousand, one hundred twelve".