222440013 has 12 divisors (see below), whose sum is σ = 333202688. Its totient is φ = 148293180.

The previous prime is 222440003. The next prime is 222440017. The reversal of 222440013 is 310044222.

222440013 is a `hidden beast` number, since 222 + 440 + 0 + 1 + 3 = 666.

It is not a de Polignac number, because 222440013 - 2⁶ = 222439949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222440017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 457453 + ... + 457938.

Almost surely, 2^222440013 is an apocalyptic number.

It is an amenable number.

222440013 is a deficient number, since it is larger than the sum of its proper divisors (110762675).

222440013 is an frugal number, since it uses more digits than its factorization.

222440013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915406 (or 915394 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 222440013 is about 14914.4229858215. The cubic root of 222440013 is about 605.9046757228.

Adding to 222440013 its reverse (310044222), we get a palindrome (532484235).

The spelling of 222440013 in words is "two hundred twenty-two million, four hundred forty thousand, thirteen".