200210101010021 has 4 divisors (see below), whose sum is σ = 202622270901792. Its totient is φ = 197797931118252.

The previous prime is 200210101009993. The next prime is 200210101010027. The reversal of 200210101010021 is 120010101012002.

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 200210101010021 - 2⁶ = 200210101009957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200210101009984 and 200210101010011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200210101010027) 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, 1206084945761 + ... + 1206084945926.

It is an arithmetic number, because the mean of its divisors is an integer number (50655567725448).

Almost surely, 2^{200210101010021} is an apocalyptic number.

It is an amenable number.

200210101010021 is a deficient number, since it is larger than the sum of its proper divisors (2412169891771).

200210101010021 is an equidigital number, since it uses as much as digits as its factorization.

200210101010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412169891770.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 200210101010021 its reverse (120010101012002), we get a palindrome (320220202022023).

The spelling of 200210101010021 in words is "two hundred trillion, two hundred ten billion, one hundred one million, ten thousand, twenty-one".