2221168801 has 4 divisors (see below), whose sum is σ = 2221278400. Its totient is φ = 2221059204.

The previous prime is 2221168787. The next prime is 2221168823. The reversal of 2221168801 is 1088611222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2221168801 - 2⁵ = 2221168769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221165801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14541 + ... + 68218.

It is an arithmetic number, because the mean of its divisors is an integer number (555319600).

Almost surely, 2^2221168801 is an apocalyptic number.

It is an amenable number.

2221168801 is a deficient number, since it is larger than the sum of its proper divisors (109599).

2221168801 is an equidigital number, since it uses as much as digits as its factorization.

2221168801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109598.

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 2221168801 is about 47129.2775353071. The cubic root of 2221168801 is about 1304.7496475659.

The spelling of 2221168801 in words is "two billion, two hundred twenty-one million, one hundred sixty-eight thousand, eight hundred one".