141131221 has 24 divisors (see below), whose sum is σ = 188537760. Its totient is φ = 104176800.

The previous prime is 141131201. The next prime is 141131227. The reversal of 141131221 is 122131141.

It is not a de Polignac number, because 141131221 - 2⁹ = 141130709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 141131195 and 141131204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141131227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3351 + ... + 17131.

It is an arithmetic number, because the mean of its divisors is an integer number (7855740).

Almost surely, 2^141131221 is an apocalyptic number.

141131221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

141131221 is a deficient number, since it is larger than the sum of its proper divisors (47406539).

141131221 is a wasteful number, since it uses less digits than its factorization.

141131221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13825 (or 13818 counting only the distinct ones).

The product of its digits is 48, while the sum is 16.

The square root of 141131221 is about 11879.8662029503. The cubic root of 141131221 is about 520.6441979127.

Adding to 141131221 its reverse (122131141), we get a palindrome (263262362).

The spelling of 141131221 in words is "one hundred forty-one million, one hundred thirty-one thousand, two hundred twenty-one".