222115105506 has 48 divisors (see below), whose sum is σ = 514200101184. Its totient is φ = 62658075168.

The previous prime is 222115105453. The next prime is 222115105549. The reversal of 222115105506 is 605501511222.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161565 + ... + 685808.

It is an arithmetic number, because the mean of its divisors is an integer number (10712502108).

Almost surely, 2^222115105506 is an apocalyptic number.

222115105506 is an abundant number, since it is smaller than the sum of its proper divisors (292084995678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222115105506 is an equidigital number, since it uses as much as digits as its factorization.

222115105506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847543 (or 847464 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 222115105506 its reverse (605501511222), we get a palindrome (827616616728).

The spelling of 222115105506 in words is "two hundred twenty-two billion, one hundred fifteen million, one hundred five thousand, five hundred six".