12212001120121 has 16 divisors (see below), whose sum is σ = 14215451279040. Its totient is φ = 10373437393920.

The previous prime is 12212001120103. The next prime is 12212001120133. The reversal of 12212001120121 is 12102110021221.

It is a cyclic number.

It is not a de Polignac number, because 12212001120121 - 2²⁷ = 12211866902393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12212001120095 and 12212001120104.

It is not an unprimeable number, because it can be changed into a prime (12212001120101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400194520 + ... + 400225033.

It is an arithmetic number, because the mean of its divisors is an integer number (888465704940).

Almost surely, 2^{12212001120121} is an apocalyptic number.

12212001120121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12212001120121 is a deficient number, since it is larger than the sum of its proper divisors (2003450158919).

12212001120121 is a wasteful number, since it uses less digits than its factorization.

12212001120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800419656.

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

Adding to 12212001120121 its reverse (12102110021221), we get a palindrome (24314111141342).

The spelling of 12212001120121 in words is "twelve trillion, two hundred twelve billion, one million, one hundred twenty thousand, one hundred twenty-one".