12200000220121 has 12 divisors (see below), whose sum is σ = 14194266185232. Its totient is φ = 10455353113128.

The previous prime is 12200000220103. The next prime is 12200000220131. The reversal of 12200000220121 is 12102200000221.

It is a happy number.

It is not a de Polignac number, because 12200000220121 - 2⁷ = 12200000219993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12200000220131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21019495 + ... + 21592108.

It is an arithmetic number, because the mean of its divisors is an integer number (1182855515436).

Almost surely, 2^{12200000220121} is an apocalyptic number.

It is an amenable number.

12200000220121 is a deficient number, since it is larger than the sum of its proper divisors (1994265965111).

12200000220121 is an equidigital number, since it uses as much as digits as its factorization.

12200000220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42617460 (or 42617453 counting only the distinct ones).

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

Adding to 12200000220121 its reverse (12102200000221), we get a palindrome (24302200220342).

The spelling of 12200000220121 in words is "twelve trillion, two hundred billion, two hundred twenty thousand, one hundred twenty-one".