222113507 has 32 divisors (see below), whose sum is σ = 291078144. Its totient is φ = 164340000.

The previous prime is 222113503. The next prime is 222113519. The reversal of 222113507 is 705311222.

It is a happy number.

It is not a de Polignac number, because 222113507 - 2² = 222113503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (222113503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 295382 + ... + 296132.

It is an arithmetic number, because the mean of its divisors is an integer number (9096192).

Almost surely, 2^222113507 is an apocalyptic number.

222113507 is a deficient number, since it is larger than the sum of its proper divisors (68964637).

222113507 is a wasteful number, since it uses less digits than its factorization.

222113507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 222113507 is about 14903.4729845093. The cubic root of 222113507 is about 605.6080738311.

Adding to 222113507 its reverse (705311222), we get a palindrome (927424729).

The spelling of 222113507 in words is "two hundred twenty-two million, one hundred thirteen thousand, five hundred seven".