221320001023332 has 12 divisors (see below), whose sum is σ = 516413335721136. Its totient is φ = 73773333674440.

The previous prime is 221320001023309. The next prime is 221320001023337. The reversal of 221320001023332 is 233320100023122.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (221320001023337) 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, 9221666709294 + ... + 9221666709317.

It is an arithmetic number, because the mean of its divisors is an integer number (43034444643428).

Almost surely, 2^{221320001023332} is an apocalyptic number.

It is an amenable number.

221320001023332 is an abundant number, since it is smaller than the sum of its proper divisors (295093334697804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221320001023332 is a wasteful number, since it uses less digits than its factorization.

221320001023332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18443333418618 (or 18443333418616 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 221320001023332 its reverse (233320100023122), we get a palindrome (454640101046454).

The spelling of 221320001023332 in words is "two hundred twenty-one trillion, three hundred twenty billion, one million, twenty-three thousand, three hundred thirty-two".