12203220232221 has 16 divisors (see below), whose sum is σ = 16727820252864. Its totient is φ = 7907500295424.

The previous prime is 12203220232213. The next prime is 12203220232241. The reversal of 12203220232221 is 12223202230221.

It is not a de Polignac number, because 12203220232221 - 2³ = 12203220232213 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12203220232191 and 12203220232200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12203220232241) 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, 56155075 + ... + 56371968.

It is an arithmetic number, because the mean of its divisors is an integer number (1045488765804).

Almost surely, 2^{12203220232221} is an apocalyptic number.

It is an amenable number.

12203220232221 is a deficient number, since it is larger than the sum of its proper divisors (4524600020643).

12203220232221 is a wasteful number, since it uses less digits than its factorization.

12203220232221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112528060.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12203220232221 its reverse (12223202230221), we get a palindrome (24426422462442).

The spelling of 12203220232221 in words is "twelve trillion, two hundred three billion, two hundred twenty million, two hundred thirty-two thousand, two hundred twenty-one".