200011202021 has 4 divisors (see below), whose sum is σ = 200771701152. Its totient is φ = 199250702892.

The previous prime is 200011202009. The next prime is 200011202033. The reversal of 200011202021 is 120202110002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (200011202009) and next prime (200011202033).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200011202021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200011201993 and 200011202011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200011202051) 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, 380249171 + ... + 380249696.

It is an arithmetic number, because the mean of its divisors is an integer number (50192925288).

Almost surely, 2^200011202021 is an apocalyptic number.

It is an amenable number.

200011202021 is a deficient number, since it is larger than the sum of its proper divisors (760499131).

200011202021 is an equidigital number, since it uses as much as digits as its factorization.

200011202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760499130.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 200011202021 its reverse (120202110002), we get a palindrome (320213312023).

The spelling of 200011202021 in words is "two hundred billion, eleven million, two hundred two thousand, twenty-one".