200201002120021 has 16 divisors (see below), whose sum is σ = 230083647259648. Its totient is φ = 170639134185600.

The previous prime is 200201002120019. The next prime is 200201002120123. The reversal of 200201002120021 is 120021200102002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 200201002120021 - 2¹ = 200201002120019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200201002119983 and 200201002120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200201002120421) 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, 9536521 + ... + 22166353.

It is an arithmetic number, because the mean of its divisors is an integer number (14380227953728).

Almost surely, 2^{200201002120021} is an apocalyptic number.

It is an amenable number.

200201002120021 is a deficient number, since it is larger than the sum of its proper divisors (29882645139627).

200201002120021 is a wasteful number, since it uses less digits than its factorization.

200201002120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12642532.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200201002120021 its reverse (120021200102002), we get a palindrome (320222202222023).

The spelling of 200201002120021 in words is "two hundred trillion, two hundred one billion, two million, one hundred twenty thousand, twenty-one".