2201131321 has 8 divisors (see below), whose sum is σ = 2353238784. Its totient is φ = 2051538240.

The previous prime is 2201131313. The next prime is 2201131327. The reversal of 2201131321 is 1231311022.

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

It is not a de Polignac number, because 2201131321 - 2³ = 2201131313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201131295 and 2201131304.

It is not an unprimeable number, because it can be changed into a prime (2201131327) 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, 626785 + ... + 630286.

It is an arithmetic number, because the mean of its divisors is an integer number (294154848).

Almost surely, 2^2201131321 is an apocalyptic number.

It is an amenable number.

2201131321 is a deficient number, since it is larger than the sum of its proper divisors (152107463).

2201131321 is a wasteful number, since it uses less digits than its factorization.

2201131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257191.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2201131321 is about 46916.2159706002. The cubic root of 2201131321 is about 1300.8143459839.

Adding to 2201131321 its reverse (1231311022), we get a palindrome (3432442343).

The spelling of 2201131321 in words is "two billion, two hundred one million, one hundred thirty-one thousand, three hundred twenty-one".