12000212212021 has 32 divisors (see below), whose sum is σ = 13339859694336. Its totient is φ = 10702969344000.

The previous prime is 12000212212013. The next prime is 12000212212091. The reversal of 12000212212021 is 12021221200021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12000212212021 - 2³ = 12000212212013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000212211986 and 12000212212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000212212091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 443240341 + ... + 443267413.

It is an arithmetic number, because the mean of its divisors is an integer number (416870615448).

Almost surely, 2^{12000212212021} is an apocalyptic number.

12000212212021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12000212212021 is a deficient number, since it is larger than the sum of its proper divisors (1339647482315).

12000212212021 is a wasteful number, since it uses less digits than its factorization.

12000212212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28813.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12000212212021 its reverse (12021221200021), we get a palindrome (24021433412042).

The spelling of 12000212212021 in words is "twelve trillion, two hundred twelve million, two hundred twelve thousand, twenty-one".