2222731 has 8 divisors (see below), whose sum is σ = 2622464. Its totient is φ = 1843560.

The previous prime is 2222729. The next prime is 2222741. The reversal of 2222731 is 1372222.

2222731 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 2222731 - 2¹ = 2222729 is a prime.

It is a super-2 number, since 2×2222731² = 9881066196722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2222699 and 2222708.

It is not an unprimeable number, because it can be changed into a prime (2222741) 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, 4905 + ... + 5338.

It is an arithmetic number, because the mean of its divisors is an integer number (327808).

2^2222731 is an apocalyptic number.

2222731 is a deficient number, since it is larger than the sum of its proper divisors (399733).

2222731 is a wasteful number, since it uses less digits than its factorization.

2222731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10281.

The product of its digits is 336, while the sum is 19.

The square root of 2222731 is about 1490.8826244879. The cubic root of 2222731 is about 130.5055462673.

Adding to 2222731 its reverse (1372222), we get a palindrome (3594953).

The spelling of 2222731 in words is "two million, two hundred twenty-two thousand, seven hundred thirty-one".