12200220221 has 32 divisors (see below), whose sum is σ = 15765166080. Its totient is φ = 9196185600.

The previous prime is 12200220181. The next prime is 12200220223. The reversal of 12200220221 is 12202200221.

It is not a de Polignac number, because 12200220221 - 2⁶ = 12200220157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12200220196 and 12200220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200220223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49961 + ... + 164001.

It is an arithmetic number, because the mean of its divisors is an integer number (492661440).

Almost surely, 2^12200220221 is an apocalyptic number.

It is an amenable number.

12200220221 is a deficient number, since it is larger than the sum of its proper divisors (3564945859).

12200220221 is a wasteful number, since it uses less digits than its factorization.

12200220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114125.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12200220221 its reverse (12202200221), we get a palindrome (24402420442).

The spelling of 12200220221 in words is "twelve billion, two hundred million, two hundred twenty thousand, two hundred twenty-one".