200210121020021 has 16 divisors (see below), whose sum is σ = 234133461496704. Its totient is φ = 167617277904384.

The previous prime is 200210121019939. The next prime is 200210121020033. The reversal of 200210121020021 is 120020121012002.

It is not a de Polignac number, because 200210121020021 - 2¹⁴ = 200210121003637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200210121019978 and 200210121020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200210121050021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128811905 + ... + 130356921.

It is an arithmetic number, because the mean of its divisors is an integer number (14633341343544).

Almost surely, 2^{200210121020021} is an apocalyptic number.

It is an amenable number.

200210121020021 is a deficient number, since it is larger than the sum of its proper divisors (33923340476683).

200210121020021 is a wasteful number, since it uses less digits than its factorization.

200210121020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975580.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200210121020021 its reverse (120020121012002), we get a palindrome (320230242032023).

The spelling of 200210121020021 in words is "two hundred trillion, two hundred ten billion, one hundred twenty-one million, twenty thousand, twenty-one".