222120552522 has 32 divisors (see below), whose sum is σ = 484644498624. Its totient is φ = 67306780800.

The previous prime is 222120552497. The next prime is 222120552529. The reversal of 222120552522 is 225255021222.

It is a self number, because there is not a number n which added to its sum of digits gives 222120552522.

It is not an unprimeable number, because it can be changed into a prime (222120552529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2613822 + ... + 2697462.

It is an arithmetic number, because the mean of its divisors is an integer number (15145140582).

Almost surely, 2^222120552522 is an apocalyptic number.

222120552522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222120552522 is an abundant number, since it is smaller than the sum of its proper divisors (262523946102).

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

222120552522 is a wasteful number, since it uses less digits than its factorization.

222120552522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123894.

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 222120552522 its reverse (225255021222), we get a palindrome (447375573744).

The spelling of 222120552522 in words is "two hundred twenty-two billion, one hundred twenty million, five hundred fifty-two thousand, five hundred twenty-two".