2220161112001 has 6 divisors (see below), whose sum is σ = 2582636395650. Its totient is φ = 1902995238816.

The previous prime is 2220161111989. The next prime is 2220161112047. The reversal of 2220161112001 is 1002111610222.

It can be written as a sum of positive squares in only one way, i.e., 1429342193601 + 790818918400 = 1195551^2 + 889280^2 .

It is not a de Polignac number, because 2220161112001 - 2⁹ = 2220161111489 is a prime.

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 2220161112001.

It is not an unprimeable number, because it can be changed into a prime (2220161112061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22654705176 + ... + 22654705273.

It is an arithmetic number, because the mean of its divisors is an integer number (430439399275).

Almost surely, 2^{2220161112001} is an apocalyptic number.

It is an amenable number.

2220161112001 is a deficient number, since it is larger than the sum of its proper divisors (362475283649).

2220161112001 is an equidigital number, since it uses as much as digits as its factorization.

2220161112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45309410463 (or 45309410456 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 2220161112001 its reverse (1002111610222), we get a palindrome (3222272722223).

The spelling of 2220161112001 in words is "two trillion, two hundred twenty billion, one hundred sixty-one million, one hundred twelve thousand, one".