200220011021021 has 4 divisors (see below), whose sum is σ = 200709546500700. Its totient is φ = 199730475541344.

The previous prime is 200220011020969. The next prime is 200220011021033. The reversal of 200220011021021 is 120120110022002.

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 144320313928921 + 55899697092100 = 12013339^2 + 7476610^2 .

It is a cyclic number.

It is not a de Polignac number, because 200220011021021 - 2¹⁸ = 200220010758877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200220011020987 and 200220011021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200220011021221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244767739226 + ... + 244767740043.

It is an arithmetic number, because the mean of its divisors is an integer number (50177386625175).

Almost surely, 2^{200220011021021} is an apocalyptic number.

It is an amenable number.

200220011021021 is a deficient number, since it is larger than the sum of its proper divisors (489535479679).

200220011021021 is an equidigital number, since it uses as much as digits as its factorization.

200220011021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489535479678.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200220011021021 its reverse (120120110022002), we get a palindrome (320340121043023).

The spelling of 200220011021021 in words is "two hundred trillion, two hundred twenty billion, eleven million, twenty-one thousand, twenty-one".