2220201331 has 4 divisors (see below), whose sum is σ = 2220296832. Its totient is φ = 2220105832.

The previous prime is 2220201301. The next prime is 2220201337. The reversal of 2220201331 is 1331020222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2220201331 - 2⁵ = 2220201299 is a prime.

It is a super-2 number, since 2×2220201331² = 9858587900348343122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220201337) 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, 12270 + ... + 67756.

It is an arithmetic number, because the mean of its divisors is an integer number (555074208).

Almost surely, 2^2220201331 is an apocalyptic number.

2220201331 is a deficient number, since it is larger than the sum of its proper divisors (95501).

2220201331 is an equidigital number, since it uses as much as digits as its factorization.

2220201331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95500.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2220201331 is about 47119.0124153722. The cubic root of 2220201331 is about 1304.5601843340.

Adding to 2220201331 its reverse (1331020222), we get a palindrome (3551221553).

The spelling of 2220201331 in words is "two billion, two hundred twenty million, two hundred one thousand, three hundred thirty-one".