111322252642 has 8 divisors (see below), whose sum is σ = 167002667100. Its totient is φ = 55654696944.

The previous prime is 111322252589. The next prime is 111322252661. The reversal of 111322252642 is 246252223111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 108082480081 + 3239772561 = 328759^2 + 56919^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 3193017 + ... + 3227692.

Almost surely, 2^111322252642 is an apocalyptic number.

111322252642 is a deficient number, since it is larger than the sum of its proper divisors (55680414458).

111322252642 is an equidigital number, since it uses as much as digits as its factorization.

111322252642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6429380.

The product of its digits is 11520, while the sum is 31.

Adding to 111322252642 its reverse (246252223111), we get a palindrome (357574475753).

The spelling of 111322252642 in words is "one hundred eleven billion, three hundred twenty-two million, two hundred fifty-two thousand, six hundred forty-two".