2222531 has 8 divisors (see below), whose sum is σ = 2317680. Its totient is φ = 2128672.

The previous prime is 2222527. The next prime is 2222533. The reversal of 2222531 is 1352222.

2222531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2222531 - 2² = 2222527 is a prime.

It is a super-2 number, since 2×2222531² = 9879288091922, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁸ + 2⁹ + 2¹⁶ + 2²¹ + 5² + 3¹⁰ + 1 .

It is not an unprimeable number, because it can be changed into a prime (2222533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4796 + ... + 5238.

It is an arithmetic number, because the mean of its divisors is an integer number (289710).

2^2222531 is an apocalyptic number.

2222531 is a deficient number, since it is larger than the sum of its proper divisors (95149).

2222531 is a wasteful number, since it uses less digits than its factorization.

2222531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645.

The product of its digits is 240, while the sum is 17.

The square root of 2222531 is about 1490.8155486176. The cubic root of 2222531 is about 130.5016318797.

Adding to 2222531 its reverse (1352222), we get a palindrome (3574753).

The spelling of 2222531 in words is "two million, two hundred twenty-two thousand, five hundred thirty-one".