200121220011 has 16 divisors (see below), whose sum is σ = 268375006080. Its totient is φ = 132642121920.

The previous prime is 200121220001. The next prime is 200121220069. The reversal of 200121220011 is 110022121002.

It is not a de Polignac number, because 200121220011 - 2¹⁴ = 200121203627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200121220001) 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, 437380 + ... + 769118.

It is an arithmetic number, because the mean of its divisors is an integer number (16773437880).

Almost surely, 2^200121220011 is an apocalyptic number.

200121220011 is a deficient number, since it is larger than the sum of its proper divisors (68253786069).

200121220011 is a wasteful number, since it uses less digits than its factorization.

200121220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332906.

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

Adding to 200121220011 its reverse (110022121002), we get a palindrome (310143341013).

Subtracting from 200121220011 its reverse (110022121002), we obtain a palindrome (90099099009).

The spelling of 200121220011 in words is "two hundred billion, one hundred twenty-one million, two hundred twenty thousand, eleven".