222000031 has 12 divisors (see below), whose sum is σ = 247462992. Its totient is φ = 198968000.

The previous prime is 222000019. The next prime is 222000043. The reversal of 222000031 is 130000222.

It is an interprime number because it is at equal distance from previous prime (222000019) and next prime (222000043).

It is not a de Polignac number, because 222000031 - 2⁷ = 221999903 is a prime.

It is a super-2 number, since 2×222000031² = 98568027528001922, 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 = 221999981 and 222000017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222000061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4330 + ... + 21511.

It is an arithmetic number, because the mean of its divisors is an integer number (20621916).

Almost surely, 2^222000031 is an apocalyptic number.

222000031 is a deficient number, since it is larger than the sum of its proper divisors (25462961).

222000031 is a wasteful number, since it uses less digits than its factorization.

222000031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25934 (or 25923 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 222000031 is about 14899.6654660432. The cubic root of 222000031 is about 605.5049228353.

Adding to 222000031 its reverse (130000222), we get a palindrome (352000253).

The spelling of 222000031 in words is "two hundred twenty-two million, thirty-one", and thus it is an aban number.