12220122201021 has 48 divisors (see below), whose sum is σ = 20374788994560. Its totient is φ = 6913057017600.

The previous prime is 12220122201013. The next prime is 12220122201097. The reversal of 12220122201021 is 12010222102221.

It is a happy number.

It is not a de Polignac number, because 12220122201021 - 2³ = 12220122201013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12220122200985 and 12220122201003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220122203021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63081516 + ... + 63274938.

It is an arithmetic number, because the mean of its divisors is an integer number (424474770720).

Almost surely, 2^{12220122201021} is an apocalyptic number.

It is an amenable number.

12220122201021 is a deficient number, since it is larger than the sum of its proper divisors (8154666793539).

12220122201021 is a wasteful number, since it uses less digits than its factorization.

12220122201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203466 (or 203463 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12220122201021 its reverse (12010222102221), we get a palindrome (24230344303242).

The spelling of 12220122201021 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-two million, two hundred one thousand, twenty-one".