2220144302021 has 4 divisors (see below), whose sum is σ = 2235044599500. Its totient is φ = 2205244004544.

The previous prime is 2220144302009. The next prime is 2220144302027. The reversal of 2220144302021 is 1202034410222.

2220144302021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 587598902500 + 1632545399521 = 766550^2 + 1277711^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2220144302021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220144302027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7450148516 + ... + 7450148813.

It is an arithmetic number, because the mean of its divisors is an integer number (558761149875).

Almost surely, 2^{2220144302021} is an apocalyptic number.

It is an amenable number.

2220144302021 is a deficient number, since it is larger than the sum of its proper divisors (14900297479).

2220144302021 is a wasteful number, since it uses less digits than its factorization.

2220144302021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14900297478.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 2220144302021 its reverse (1202034410222), we get a palindrome (3422178712243).

The spelling of 2220144302021 in words is "two trillion, two hundred twenty billion, one hundred forty-four million, three hundred two thousand, twenty-one".