200121222201111 has 12 divisors (see below), whose sum is σ = 289106070110520. Its totient is φ = 133394725447920.

The previous prime is 200121222201097. The next prime is 200121222201133. The reversal of 200121222201111 is 111102222121002.

200121222201111 is a `hidden beast` number, since 200 + 12 + 122 + 220 + 1 + 111 = 666.

It is not a de Polignac number, because 200121222201111 - 2¹⁴ = 200121222184727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121222201311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1618491925 + ... + 1618615566.

It is an arithmetic number, because the mean of its divisors is an integer number (24092172509210).

Almost surely, 2^{200121222201111} is an apocalyptic number.

200121222201111 is a deficient number, since it is larger than the sum of its proper divisors (88984847909409).

200121222201111 is a wasteful number, since it uses less digits than its factorization.

200121222201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3237114366 (or 3237114363 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 200121222201111 its reverse (111102222121002), we get a palindrome (311223444322113).

The spelling of 200121222201111 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred one thousand, one hundred eleven".