1005222222522 has 32 divisors (see below), whose sum is σ = 2552945328000. Its totient is φ = 287206349184.

The previous prime is 1005222222427. The next prime is 1005222222547. The reversal of 1005222222522 is 2252222225001.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1329658647 + ... + 1329659402.

It is an arithmetic number, because the mean of its divisors is an integer number (79779541500).

Almost surely, 2^{1005222222522} is an apocalyptic number.

1005222222522 is an abundant number, since it is smaller than the sum of its proper divisors (1547723105478).

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

1005222222522 is a wasteful number, since it uses less digits than its factorization.

1005222222522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659318067 (or 2659318061 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 1005222222522 its reverse (2252222225001), we get a palindrome (3257444447523).

The spelling of 1005222222522 in words is "one trillion, five billion, two hundred twenty-two million, two hundred twenty-two thousand, five hundred twenty-two".