2221331234 has 8 divisors (see below), whose sum is σ = 3366347628. Its totient is φ = 1099215360.

The previous prime is 2221331213. The next prime is 2221331239. The reversal of 2221331234 is 4321331222.

It can be written as a sum of positive squares in 2 ways, for example, as 2033559025 + 187772209 = 45095^2 + 13703^2 .

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

It is a super-2 number, since 2×2221331234² = 9868624902287925512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2221331239) 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 3 ways as a sum of consecutive naturals, for example, 5724887 + ... + 5725274.

Almost surely, 2^2221331234 is an apocalyptic number.

2221331234 is a deficient number, since it is larger than the sum of its proper divisors (1145016394).

2221331234 is a wasteful number, since it uses less digits than its factorization.

2221331234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11450260.

The product of its digits is 1728, while the sum is 23.

The square root of 2221331234 is about 47131.0007744372. Note that the first 3 decimals coincide. The cubic root of 2221331234 is about 1304.7814520275.

Adding to 2221331234 its reverse (4321331222), we get a palindrome (6542662456).

The spelling of 2221331234 in words is "two billion, two hundred twenty-one million, three hundred thirty-one thousand, two hundred thirty-four".