200211000121021 has 4 divisors (see below), whose sum is σ = 200211930032544. Its totient is φ = 200210070209500.

The previous prime is 200211000120947. The next prime is 200211000121079. The reversal of 200211000121021 is 120121000112002.

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-200211000121021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200211000120992 and 200211000121010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200211000421021) 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, 464632735 + ... + 465063436.

It is an arithmetic number, because the mean of its divisors is an integer number (50052982508136).

Almost surely, 2^{200211000121021} is an apocalyptic number.

It is an amenable number.

200211000121021 is a deficient number, since it is larger than the sum of its proper divisors (929911523).

200211000121021 is an equidigital number, since it uses as much as digits as its factorization.

200211000121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929911522.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 200211000121021 its reverse (120121000112002), we get a palindrome (320332000233023).

The spelling of 200211000121021 in words is "two hundred trillion, two hundred eleven billion, one hundred twenty-one thousand, twenty-one".