200211020021 has 4 divisors (see below), whose sum is σ = 203604427200. Its totient is φ = 196817612844.

The previous prime is 200211019979. The next prime is 200211020081. The reversal of 200211020021 is 120020112002.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200211020021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200211019984 and 200211020011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200211020081) 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, 1696703501 + ... + 1696703618.

It is an arithmetic number, because the mean of its divisors is an integer number (50901106800).

Almost surely, 2^200211020021 is an apocalyptic number.

It is an amenable number.

200211020021 is a deficient number, since it is larger than the sum of its proper divisors (3393407179).

200211020021 is an equidigital number, since it uses as much as digits as its factorization.

200211020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393407178.

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

Adding to 200211020021 its reverse (120020112002), we get a palindrome (320231132023).

The spelling of 200211020021 in words is "two hundred billion, two hundred eleven million, twenty thousand, twenty-one".