220200013021 has 4 divisors (see below), whose sum is σ = 221018600700. Its totient is φ = 219381425344.

The previous prime is 220200013009. The next prime is 220200013027. The reversal of 220200013021 is 120310002022.

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 6399200025 + 213800812996 = 79995^2 + 462386^2 .

It is a cyclic number.

It is not a de Polignac number, because 220200013021 - 2¹¹ = 220200010973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220200012992 and 220200013010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220200013027) 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, 409293436 + ... + 409293973.

It is an arithmetic number, because the mean of its divisors is an integer number (55254650175).

Almost surely, 2^220200013021 is an apocalyptic number.

It is an amenable number.

220200013021 is a deficient number, since it is larger than the sum of its proper divisors (818587679).

220200013021 is an equidigital number, since it uses as much as digits as its factorization.

220200013021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818587678.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 220200013021 its reverse (120310002022), we get a palindrome (340510015043).

The spelling of 220200013021 in words is "two hundred twenty billion, two hundred million, thirteen thousand, twenty-one".