12212000011121 has 4 divisors (see below), whose sum is σ = 12286920256752. Its totient is φ = 12137079765492.

The previous prime is 12212000011069. The next prime is 12212000011163. The reversal of 12212000011121 is 12111000021221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12212000011121 - 2³⁸ = 11937122104177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12212000011096 and 12212000011105.

It is not an unprimeable number, because it can be changed into a prime (12212000011171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37460122571 + ... + 37460122896.

It is an arithmetic number, because the mean of its divisors is an integer number (3071730064188).

Almost surely, 2^{12212000011121} is an apocalyptic number.

It is an amenable number.

12212000011121 is a deficient number, since it is larger than the sum of its proper divisors (74920245631).

12212000011121 is an equidigital number, since it uses as much as digits as its factorization.

12212000011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74920245630.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12212000011121 its reverse (12111000021221), we get a palindrome (24323000032342).

The spelling of 12212000011121 in words is "twelve trillion, two hundred twelve billion, eleven thousand, one hundred twenty-one".