200021210222021 has 8 divisors (see below), whose sum is σ = 201069330960384. Its totient is φ = 198973098747280.

The previous prime is 200021210221957. The next prime is 200021210222123. The reversal of 200021210222021 is 120222012120002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200021210222021 - 2⁶ = 200021210221957 is a prime.

It is a super-2 number, since 2×200021210222021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021210222921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43332620 + ... + 47725866.

It is an arithmetic number, because the mean of its divisors is an integer number (25133666370048).

Almost surely, 2^{200021210222021} is an apocalyptic number.

It is an amenable number.

200021210222021 is a deficient number, since it is larger than the sum of its proper divisors (1048120738363).

200021210222021 is a wasteful number, since it uses less digits than its factorization.

200021210222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4631811.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 200021210222021 its reverse (120222012120002), we get a palindrome (320243222342023).

The spelling of 200021210222021 in words is "two hundred trillion, twenty-one billion, two hundred ten million, two hundred twenty-two thousand, twenty-one".