12211032212121 has 8 divisors (see below), whose sum is σ = 16281712889344. Its totient is φ = 8140519838160.

The previous prime is 12211032212089. The next prime is 12211032212227. The reversal of 12211032212121 is 12121223011221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12211032212121 - 2⁵ = 12211032212089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12211032212321) 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, 41906425 + ... + 42196806.

It is an arithmetic number, because the mean of its divisors is an integer number (2035214111168).

Almost surely, 2^{12211032212121} is an apocalyptic number.

It is an amenable number.

12211032212121 is a deficient number, since it is larger than the sum of its proper divisors (4070680677223).

12211032212121 is an equidigital number, since it uses as much as digits as its factorization.

12211032212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84151631.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 12211032212121 its reverse (12121223011221), we get a palindrome (24332255223342).

The spelling of 12211032212121 in words is "twelve trillion, two hundred eleven billion, thirty-two million, two hundred twelve thousand, one hundred twenty-one".