2201031221320 has 32 divisors (see below), whose sum is σ = 5007964303800. Its totient is φ = 870520211968.

The previous prime is 2201031221303. The next prime is 2201031221321. The reversal of 2201031221320 is 231221301022.

It can be written as a sum of positive squares in 4 ways, for example, as 1983190594564 + 217840626756 = 1408258^2 + 466734^2 .

It is a super-3 number, since 3×2201031221320³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2201031221321) 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, 309130039 + ... + 309137158.

Almost surely, 2^{2201031221320} is an apocalyptic number.

2201031221320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201031221320 is an abundant number, since it is smaller than the sum of its proper divisors (2806933082480).

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

2201031221320 is a wasteful number, since it uses less digits than its factorization.

2201031221320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618267297 (or 618267293 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2201031221320 its reverse (231221301022), we get a palindrome (2432252522342).

The spelling of 2201031221320 in words is "two trillion, two hundred one billion, thirty-one million, two hundred twenty-one thousand, three hundred twenty".