12200000221 has 16 divisors (see below), whose sum is σ = 12567679488. Its totient is φ = 11835849600.

The previous prime is 12200000213. The next prime is 12200000237.

12200000221 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 12200000221 - 2³ = 12200000213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12200000198 and 12200000207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200000261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10921555 + ... + 10922671.

It is an arithmetic number, because the mean of its divisors is an integer number (785479968).

Almost surely, 2^12200000221 is an apocalyptic number.

It is an amenable number.

12200000221 is a deficient number, since it is larger than the sum of its proper divisors (367679267).

12200000221 is a wasteful number, since it uses less digits than its factorization.

12200000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412.

The product of its (nonzero) digits is 16, while the sum is 10.

It can be divided in two parts, 12200000 and 221, that added together give a palindrome (12200221).

The spelling of 12200000221 in words is "twelve billion, two hundred million, two hundred twenty-one", and thus it is an aban number.