200002001222021 has 16 divisors (see below), whose sum is σ = 205635852742320. Its totient is φ = 194405285099520.

The previous prime is 200002001221973. The next prime is 200002001222027. The reversal of 200002001222021 is 120222100200002.

It can be written as a sum of positive squares in 8 ways, for example, as 1038281519521 + 198963719702500 = 1018961^2 + 14105450^2 .

It is a cyclic number.

It is not a de Polignac number, because 200002001222021 - 2¹⁰ = 200002001220997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200002001221987 and 200002001222005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200002001222027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6780545 + ... + 21118233.

It is an arithmetic number, because the mean of its divisors is an integer number (12852240796395).

Almost surely, 2^{200002001222021} is an apocalyptic number.

It is an amenable number.

200002001222021 is a deficient number, since it is larger than the sum of its proper divisors (5633851520299).

200002001222021 is a wasteful number, since it uses less digits than its factorization.

200002001222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14338984.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 200002001222021 its reverse (120222100200002), we get a palindrome (320224101422023).

The spelling of 200002001222021 in words is "two hundred trillion, two billion, one million, two hundred twenty-two thousand, twenty-one".