111622141801 has 3 divisors (see below), whose sum is σ = 111622475901. Its totient is φ = 111621807702.

The previous prime is 111622141751. The next prime is 111622141837. The reversal of 111622141801 is 108141226111.

It is a happy number.

The square root of 111622141801 is 334099.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 111622141801 - 2¹⁵ = 111622109033 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111622141801.

It is not an unprimeable number, because it can be changed into a prime (711622141801) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 167050 + ... + 501148.

It is an arithmetic number, because the mean of its divisors is an integer number (37207491967).

Almost surely, 2^111622141801 is an apocalyptic number.

111622141801 is the 334099-th square number.

111622141801 is the 167050-th centered octagonal number.

It is an amenable number.

111622141801 is a deficient number, since it is larger than the sum of its proper divisors (334100).

111622141801 is an frugal number, since it uses more digits than its factorization.

111622141801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668198 (or 334099 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 28.

Adding to 111622141801 its reverse (108141226111), we get a palindrome (219763367912).

The spelling of 111622141801 in words is "one hundred eleven billion, six hundred twenty-two million, one hundred forty-one thousand, eight hundred one".