222211031 has 6 divisors (see below), whose sum is σ = 258490440. Its totient is φ = 190466556.

The previous prime is 222211019. The next prime is 222211037. The reversal of 222211031 is 130112222.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-222211031 is a prime.

It is a super-2 number, since 2×222211031² = 98755484596165922, 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 = 222210997 and 222211015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222211037) 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 5 ways as a sum of consecutive naturals, for example, 2267411 + ... + 2267508.

It is an arithmetic number, because the mean of its divisors is an integer number (43081740).

Almost surely, 2^222211031 is an apocalyptic number.

222211031 is a deficient number, since it is larger than the sum of its proper divisors (36279409).

222211031 is an equidigital number, since it uses as much as digits as its factorization.

222211031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4534933 (or 4534926 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 222211031 is about 14906.7444802680. The cubic root of 222211031 is about 605.6966962065.

Adding to 222211031 its reverse (130112222), we get a palindrome (352323253).

The spelling of 222211031 in words is "two hundred twenty-two million, two hundred eleven thousand, thirty-one".