4311200232221 has 4 divisors (see below), whose sum is σ = 4315144606812. Its totient is φ = 4307255857632.

The previous prime is 4311200232191. The next prime is 4311200232341. The reversal of 4311200232221 is 1222320021134.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3880450852996 + 430749379225 = 1969886^2 + 656315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4311200232221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4311200232721) 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, 1972185656 + ... + 1972187841.

It is an arithmetic number, because the mean of its divisors is an integer number (1078786151703).

Almost surely, 2^{4311200232221} is an apocalyptic number.

It is an amenable number.

4311200232221 is a deficient number, since it is larger than the sum of its proper divisors (3944374591).

4311200232221 is a wasteful number, since it uses less digits than its factorization.

4311200232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3944374590.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 4311200232221 its reverse (1222320021134), we get a palindrome (5533520253355).

The spelling of 4311200232221 in words is "four trillion, three hundred eleven billion, two hundred million, two hundred thirty-two thousand, two hundred twenty-one".