112551221402 has 4 divisors (see below), whose sum is σ = 168826832106. Its totient is φ = 56275610700.

The previous prime is 112551221359. The next prime is 112551221413. The reversal of 112551221402 is 204122155211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 95747543761 + 16803677641 = 309431^2 + 129629^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28137805349 + ... + 28137805352.

Almost surely, 2^112551221402 is an apocalyptic number.

112551221402 is a deficient number, since it is larger than the sum of its proper divisors (56275610704).

112551221402 is an equidigital number, since it uses as much as digits as its factorization.

112551221402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56275610703.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 112551221402 its reverse (204122155211), we get a palindrome (316673376613).

The spelling of 112551221402 in words is "one hundred twelve billion, five hundred fifty-one million, two hundred twenty-one thousand, four hundred two".