2201201321 has 4 divisors (see below), whose sum is σ = 2401310544. Its totient is φ = 2001092100.

The previous prime is 2201201291. The next prime is 2201201329. The reversal of 2201201321 is 1231021022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2201201321 - 2⁶ = 2201201257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201201296 and 2201201305.

It is not an unprimeable number, because it can be changed into a prime (2201201329) 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, 100054595 + ... + 100054616.

It is an arithmetic number, because the mean of its divisors is an integer number (600327636).

Almost surely, 2^2201201321 is an apocalyptic number.

It is an amenable number.

2201201321 is a deficient number, since it is larger than the sum of its proper divisors (200109223).

2201201321 is a wasteful number, since it uses less digits than its factorization.

2201201321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200109222.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2201201321 is about 46916.9619753880. The cubic root of 2201201321 is about 1300.8281352625.

Adding to 2201201321 its reverse (1231021022), we get a palindrome (3432222343).

The spelling of 2201201321 in words is "two billion, two hundred one million, two hundred one thousand, three hundred twenty-one".