200011212211021 has 4 divisors (see below), whose sum is σ = 200011243867072. Its totient is φ = 200011180554972.

The previous prime is 200011212210923. The next prime is 200011212211039. The reversal of 200011212211021 is 120112212110002.

200011212211021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 200011212211021 - 2²³ = 200011203822413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200011212210986 and 200011212211004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200011212218021) 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, 2747091 + ... + 20188336.

It is an arithmetic number, because the mean of its divisors is an integer number (50002810966768).

Almost surely, 2^{200011212211021} is an apocalyptic number.

It is an amenable number.

200011212211021 is a deficient number, since it is larger than the sum of its proper divisors (31656051).

200011212211021 is an equidigital number, since it uses as much as digits as its factorization.

200011212211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31656050.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 200011212211021 its reverse (120112212110002), we get a palindrome (320123424321023).

The spelling of 200011212211021 in words is "two hundred trillion, eleven billion, two hundred twelve million, two hundred eleven thousand, twenty-one".