2213021331 has 10 divisors (see below), whose sum is σ = 3305871492. Its totient is φ = 1475347500.

The previous prime is 2213021329. The next prime is 2213021357. The reversal of 2213021331 is 1331203122.

It is not a de Polignac number, because 2213021331 - 2¹ = 2213021329 is a prime.

It is a super-2 number, since 2×2213021331² = 9794926822922023122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2213021311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 13660545 + ... + 13660706.

Almost surely, 2^2213021331 is an apocalyptic number.

2213021331 is a deficient number, since it is larger than the sum of its proper divisors (1092850161).

2213021331 is an equidigital number, since it uses as much as digits as its factorization.

2213021331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27321263 (or 27321254 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2213021331 is about 47042.7606651650. The cubic root of 2213021331 is about 1303.1523754510.

Adding to 2213021331 its reverse (1331203122), we get a palindrome (3544224453).

The spelling of 2213021331 in words is "two billion, two hundred thirteen million, twenty-one thousand, three hundred thirty-one".