141331221 has 12 divisors (see below), whose sum is σ = 204615840. Its totient is φ = 94003560.

The previous prime is 141331189. The next prime is 141331241. The reversal of 141331221 is 122133141.

141331221 is a `hidden beast` number, since 1 + 413 + 31 + 221 = 666.

It is not a de Polignac number, because 141331221 - 2⁵ = 141331189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 141331194 and 141331203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141331241) 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, 13935 + ... + 21836.

It is an arithmetic number, because the mean of its divisors is an integer number (17051320).

Almost surely, 2^141331221 is an apocalyptic number.

It is an amenable number.

141331221 is a deficient number, since it is larger than the sum of its proper divisors (63284619).

141331221 is a wasteful number, since it uses less digits than its factorization.

141331221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36216 (or 36213 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 141331221 is about 11888.2808260909. The cubic root of 141331221 is about 520.8900204170.

Adding to 141331221 its reverse (122133141), we get a palindrome (263464362).

The spelling of 141331221 in words is "one hundred forty-one million, three hundred thirty-one thousand, two hundred twenty-one".