200220221102021 has 4 divisors (see below), whose sum is σ = 200226404396844. Its totient is φ = 200214037807200.

The previous prime is 200220221101987. The next prime is 200220221102063. The reversal of 200220221102021 is 120201122022002.

It is a happy number.

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 132524992802500 + 67695228299521 = 11511950^2 + 8227711^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200220221102021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200220221132021) 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, 3091598840 + ... + 3091663601.

It is an arithmetic number, because the mean of its divisors is an integer number (50056601099211).

Almost surely, 2^{200220221102021} is an apocalyptic number.

It is an amenable number.

200220221102021 is a deficient number, since it is larger than the sum of its proper divisors (6183294823).

200220221102021 is an equidigital number, since it uses as much as digits as its factorization.

200220221102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6183294822.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 200220221102021 its reverse (120201122022002), we get a palindrome (320421343124023).

The spelling of 200220221102021 in words is "two hundred trillion, two hundred twenty billion, two hundred twenty-one million, one hundred two thousand, twenty-one".