200331131221 has 12 divisors (see below), whose sum is σ = 219540198528. Its totient is φ = 182693067024.

The previous prime is 200331131167. The next prime is 200331131237. The reversal of 200331131221 is 122131133002.

It is not a de Polignac number, because 200331131221 - 2¹⁵ = 200331098453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200331131261) 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, 7126885 + ... + 7154938.

It is an arithmetic number, because the mean of its divisors is an integer number (18295016544).

Almost surely, 2^200331131221 is an apocalyptic number.

It is an amenable number.

200331131221 is a deficient number, since it is larger than the sum of its proper divisors (19209067307).

200331131221 is a wasteful number, since it uses less digits than its factorization.

200331131221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14281932 (or 14281919 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 200331131221 its reverse (122131133002), we get a palindrome (322462264223).

The spelling of 200331131221 in words is "two hundred billion, three hundred thirty-one million, one hundred thirty-one thousand, two hundred twenty-one".