200100212202021 has 4 divisors (see below), whose sum is σ = 266800282936032. Its totient is φ = 133400141468012.

The previous prime is 200100212201999. The next prime is 200100212202101. The reversal of 200100212202021 is 120202212001002.

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 200100212202021 - 2⁶ = 200100212201957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200100212202221) 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, 33350035367001 + ... + 33350035367006.

It is an arithmetic number, because the mean of its divisors is an integer number (66700070734008).

Almost surely, 2^{200100212202021} is an apocalyptic number.

It is an amenable number.

200100212202021 is a deficient number, since it is larger than the sum of its proper divisors (66700070734011).

200100212202021 is an equidigital number, since it uses as much as digits as its factorization.

200100212202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66700070734010.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 200100212202021 its reverse (120202212001002), we get a palindrome (320302424203023).

The spelling of 200100212202021 in words is "two hundred trillion, one hundred billion, two hundred twelve million, two hundred two thousand, twenty-one".