200031331221 has 16 divisors (see below), whose sum is σ = 296350864320. Its totient is φ = 133350552720.

The previous prime is 200031331163. The next prime is 200031331343. The reversal of 200031331221 is 122133130002.

200031331221 is a `hidden beast` number, since 20 + 0 + 0 + 313 + 312 + 21 = 666.

It is not a de Polignac number, because 200031331221 - 2²⁶ = 199964222357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200031331194 and 200031331203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200031331121) 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, 1200591 + ... + 1357011.

It is an arithmetic number, because the mean of its divisors is an integer number (18521929020).

Almost surely, 2^200031331221 is an apocalyptic number.

It is an amenable number.

200031331221 is a deficient number, since it is larger than the sum of its proper divisors (96319533099).

200031331221 is a wasteful number, since it uses less digits than its factorization.

200031331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203793 (or 203787 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 200031331221 its reverse (122133130002), we get a palindrome (322164461223).

The spelling of 200031331221 in words is "two hundred billion, thirty-one million, three hundred thirty-one thousand, two hundred twenty-one".