201320232221 has 8 divisors (see below), whose sum is σ = 202675058688. Its totient is φ = 199965690000.

The previous prime is 201320232119. The next prime is 201320232241. The reversal of 201320232221 is 122232023102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201320232221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201320232193 and 201320232202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201320232241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1460831 + ... + 1592691.

It is an arithmetic number, because the mean of its divisors is an integer number (25334382336).

Almost surely, 2^201320232221 is an apocalyptic number.

It is an amenable number.

201320232221 is a deficient number, since it is larger than the sum of its proper divisors (1354826467).

201320232221 is a wasteful number, since it uses less digits than its factorization.

201320232221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142123.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 201320232221 its reverse (122232023102), we get a palindrome (323552255323).

The spelling of 201320232221 in words is "two hundred one billion, three hundred twenty million, two hundred thirty-two thousand, two hundred twenty-one".