12000000221012 has 24 divisors (see below), whose sum is σ = 21975832032000. Its totient is φ = 5722686025056.

The previous prime is 12000000221009. The next prime is 12000000221017. The reversal of 12000000221012 is 21012200000021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12000000220984 and 12000000221002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000000221017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186837212 + ... + 186901427.

It is an arithmetic number, because the mean of its divisors is an integer number (915659668000).

Almost surely, 2^{12000000221012} is an apocalyptic number.

It is an amenable number.

12000000221012 is a deficient number, since it is larger than the sum of its proper divisors (9975831810988).

12000000221012 is a wasteful number, since it uses less digits than its factorization.

12000000221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373739015 (or 373739013 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12000000221012 its reverse (21012200000021), we get a palindrome (33012200221033).

The spelling of 12000000221012 in words is "twelve trillion, two hundred twenty-one thousand, twelve".