2221424331 has 32 divisors (see below), whose sum is σ = 3505420800. Its totient is φ = 1224330240.

The previous prime is 2221424287. The next prime is 2221424339. The reversal of 2221424331 is 1334241222.

It is a happy number.

It is not a de Polignac number, because 2221424331 - 2¹⁰ = 2221423307 is a prime.

It is a super-2 number, since 2×2221424331² = 9869452116717595122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2221424339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1149436 + ... + 1151366.

It is an arithmetic number, because the mean of its divisors is an integer number (109544400).

Almost surely, 2^2221424331 is an apocalyptic number.

2221424331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2221424331 is a deficient number, since it is larger than the sum of its proper divisors (1283996469).

2221424331 is a wasteful number, since it uses less digits than its factorization.

2221424331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3859.

The product of its digits is 2304, while the sum is 24.

The square root of 2221424331 is about 47131.9884049039. The cubic root of 2221424331 is about 1304.7996797671.

Adding to 2221424331 its reverse (1334241222), we get a palindrome (3555665553).

The spelling of 2221424331 in words is "two billion, two hundred twenty-one million, four hundred twenty-four thousand, three hundred thirty-one".