1225222225222 has 8 divisors (see below), whose sum is σ = 1838024787672. Its totient is φ = 612547296000.

The previous prime is 1225222225193. The next prime is 1225222225309. The reversal of 1225222225222 is 2225222225221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 31884304 + ... + 31922707.

It is an arithmetic number, because the mean of its divisors is an integer number (229753098459).

Almost surely, 2^{1225222225222} is an apocalyptic number.

1225222225222 is a deficient number, since it is larger than the sum of its proper divisors (612802562450).

1225222225222 is an equidigital number, since it uses as much as digits as its factorization.

1225222225222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63816614.

The product of its digits is 25600, while the sum is 31.

Subtracting 1225222225222 from its reverse (2225222225221), we obtain a palindrome (999999999999).

The spelling of 1225222225222 in words is "one trillion, two hundred twenty-five billion, two hundred twenty-two million, two hundred twenty-five thousand, two hundred twenty-two".