12020122022221 has 8 divisors (see below), whose sum is σ = 12301054809120. Its totient is φ = 11739252647472.

The previous prime is 12020122022213. The next prime is 12020122022281. The reversal of 12020122022221 is 12222022102021.

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

It is a cyclic number.

It is not a de Polignac number, because 12020122022221 - 2³ = 12020122022213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020122022281) 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, 15469390 + ... + 16227823.

It is an arithmetic number, because the mean of its divisors is an integer number (1537631851140).

Almost surely, 2^{12020122022221} is an apocalyptic number.

It is an amenable number.

12020122022221 is a deficient number, since it is larger than the sum of its proper divisors (280932786899).

12020122022221 is an equidigital number, since it uses as much as digits as its factorization.

12020122022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31706075.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12020122022221 its reverse (12222022102021), we get a palindrome (24242144124242).

The spelling of 12020122022221 in words is "twelve trillion, twenty billion, one hundred twenty-two million, twenty-two thousand, two hundred twenty-one".