2220200110021 has 4 divisors (see below), whose sum is σ = 2229728866092. Its totient is φ = 2210671353952.

The previous prime is 2220200110013. The next prime is 2220200110031. The reversal of 2220200110021 is 1200110020222.

It is a happy number.

2220200110021 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 929161044900 + 1291039065121 = 963930^2 + 1136239^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220200110021 - 2³ = 2220200110013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220200109983 and 2220200110010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220200110031) 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, 4764377686 + ... + 4764378151.

It is an arithmetic number, because the mean of its divisors is an integer number (557432216523).

Almost surely, 2^{2220200110021} is an apocalyptic number.

It is an amenable number.

2220200110021 is a deficient number, since it is larger than the sum of its proper divisors (9528756071).

2220200110021 is an equidigital number, since it uses as much as digits as its factorization.

2220200110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9528756070.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2220200110021 its reverse (1200110020222), we get a palindrome (3420310130243).

The spelling of 2220200110021 in words is "two trillion, two hundred twenty billion, two hundred million, one hundred ten thousand, twenty-one".