200020121020011 has 16 divisors (see below), whose sum is σ = 267437142470144. Its totient is φ = 132974969553504.

The previous prime is 200020121019967. The next prime is 200020121020043. The reversal of 200020121020011 is 110020121020002.

It is not a de Polignac number, because 200020121020011 - 2²¹ = 200020118922859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200020121020411) 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, 11627661 + ... + 23135313.

It is an arithmetic number, because the mean of its divisors is an integer number (16714821404384).

Almost surely, 2^{200020121020011} is an apocalyptic number.

200020121020011 is a deficient number, since it is larger than the sum of its proper divisors (67417021450133).

200020121020011 is a wasteful number, since it uses less digits than its factorization.

200020121020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11523810.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 200020121020011 its reverse (110020121020002), we get a palindrome (310040242040013).

Subtracting from 200020121020011 its reverse (110020121020002), we obtain a palindrome (90000000000009).

The spelling of 200020121020011 in words is "two hundred trillion, twenty billion, one hundred twenty-one million, twenty thousand, eleven".