200121133233 has 16 divisors (see below), whose sum is σ = 304952744960. Its totient is φ = 114352587216.

The previous prime is 200121133193. The next prime is 200121133279. The reversal of 200121133233 is 332331121002.

It is not a de Polignac number, because 200121133233 - 2¹⁰ = 200121132209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200121133133) 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, 1894158 + ... + 1997016.

It is an arithmetic number, because the mean of its divisors is an integer number (19059546560).

Almost surely, 2^200121133233 is an apocalyptic number.

It is an amenable number.

200121133233 is a deficient number, since it is larger than the sum of its proper divisors (104831611727).

200121133233 is a wasteful number, since it uses less digits than its factorization.

200121133233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195516.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 200121133233 its reverse (332331121002), we get a palindrome (532452254235).

The spelling of 200121133233 in words is "two hundred billion, one hundred twenty-one million, one hundred thirty-three thousand, two hundred thirty-three".