12202200221 has 4 divisors (see below), whose sum is σ = 12206406432. Its totient is φ = 12197994012.

The previous prime is 12202200217. The next prime is 12202200271. The reversal of 12202200221 is 12200220221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12202200221 - 2² = 12202200217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12202200196 and 12202200205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202200271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2098751 + ... + 2104556.

It is an arithmetic number, because the mean of its divisors is an integer number (3051601608).

Almost surely, 2^12202200221 is an apocalyptic number.

It is an amenable number.

12202200221 is a deficient number, since it is larger than the sum of its proper divisors (4206211).

12202200221 is an equidigital number, since it uses as much as digits as its factorization.

12202200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4206210.

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

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

The spelling of 12202200221 in words is "twelve billion, two hundred two million, two hundred thousand, two hundred twenty-one".