2132201221 has 8 divisors (see below), whose sum is σ = 2145355200. Its totient is φ = 2119072032.

The previous prime is 2132201219. The next prime is 2132201273. The reversal of 2132201221 is 1221022312.

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 not a de Polignac number, because 2132201221 - 2¹ = 2132201219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2132201195 and 2132201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2132201321) 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, 184026 + ... + 195268.

It is an arithmetic number, because the mean of its divisors is an integer number (268169400).

Almost surely, 2^2132201221 is an apocalyptic number.

It is an amenable number.

2132201221 is a deficient number, since it is larger than the sum of its proper divisors (13153979).

2132201221 is a wasteful number, since it uses less digits than its factorization.

2132201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12395.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2132201221 is about 46175.7644333042. The cubic root of 2132201221 is about 1287.0914220058.

Adding to 2132201221 its reverse (1221022312), we get a palindrome (3353223533).

The spelling of 2132201221 in words is "two billion, one hundred thirty-two million, two hundred one thousand, two hundred twenty-one".