222232013 has 4 divisors (see below), whose sum is σ = 227652348. Its totient is φ = 216811680.

The previous prime is 222231979. The next prime is 222232051. The reversal of 222232013 is 310232222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310232222 = 2 ⋅155116111.

It can be written as a sum of positive squares in 2 ways, for example, as 8282884 + 213949129 = 2878^2 + 14627^2 .

It is a cyclic number.

It is not a de Polignac number, because 222232013 - 2¹² = 222227917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222231982 and 222232000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222232063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2710106 + ... + 2710187.

It is an arithmetic number, because the mean of its divisors is an integer number (56913087).

Almost surely, 2^222232013 is an apocalyptic number.

It is an amenable number.

222232013 is a deficient number, since it is larger than the sum of its proper divisors (5420335).

222232013 is an equidigital number, since it uses as much as digits as its factorization.

222232013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5420334.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 222232013 is about 14907.4482390515. The cubic root of 222232013 is about 605.7157596587.

Adding to 222232013 its reverse (310232222), we get a palindrome (532464235).

The spelling of 222232013 in words is "two hundred twenty-two million, two hundred thirty-two thousand, thirteen".