221112452425 has 12 divisors (see below), whose sum is σ = 283633905420. Its totient is φ = 170790307520.

The previous prime is 221112452411. The next prime is 221112452479. The reversal of 221112452425 is 524254211122.

221112452425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 3095364496 + 218017087929 = 55636^2 + 466923^2 .

It is not a de Polignac number, because 221112452425 - 2²⁵ = 221078897993 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152490622 + ... + 152492071.

It is an arithmetic number, because the mean of its divisors is an integer number (23636158785).

Almost surely, 2^221112452425 is an apocalyptic number.

221112452425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

221112452425 is a deficient number, since it is larger than the sum of its proper divisors (62521452995).

221112452425 is a wasteful number, since it uses less digits than its factorization.

221112452425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304982732 (or 304982727 counting only the distinct ones).

The product of its digits is 12800, while the sum is 31.

Adding to 221112452425 its reverse (524254211122), we get a palindrome (745366663547).

The spelling of 221112452425 in words is "two hundred twenty-one billion, one hundred twelve million, four hundred fifty-two thousand, four hundred twenty-five".