12220201021 has 8 divisors (see below), whose sum is σ = 13967436224. Its totient is φ = 10473338880.

The previous prime is 12220201013. The next prime is 12220201033. The reversal of 12220201021 is 12010202221.

It is a happy number.

12220201021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12220201021 - 2³ = 12220201013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12220200992 and 12220201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220201051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19140 + ... + 157501.

It is an arithmetic number, because the mean of its divisors is an integer number (1745929528).

Almost surely, 2^12220201021 is an apocalyptic number.

It is an amenable number.

12220201021 is a deficient number, since it is larger than the sum of its proper divisors (1747235203).

12220201021 is an equidigital number, since it uses as much as digits as its factorization.

12220201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186531.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12220201021 its reverse (12010202221), we get a palindrome (24230403242).

The spelling of 12220201021 in words is "twelve billion, two hundred twenty million, two hundred one thousand, twenty-one".