141221331 has 24 divisors (see below), whose sum is σ = 210855216. Its totient is φ = 91022400.

The previous prime is 141221321. The next prime is 141221369. The reversal of 141221331 is 133122141.

It is not a de Polignac number, because 141221331 - 2⁵ = 141221299 is a prime.

It is a super-2 number, since 2×141221331² = 39886928658823122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (141221321) 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, 37281 + ... + 40893.

It is an arithmetic number, because the mean of its divisors is an integer number (8785634).

Almost surely, 2^141221331 is an apocalyptic number.

141221331 is a deficient number, since it is larger than the sum of its proper divisors (69633885).

141221331 is a wasteful number, since it uses less digits than its factorization.

141221331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3763 (or 3760 counting only the distinct ones).

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

The square root of 141221331 is about 11883.6581489035. The cubic root of 141221331 is about 520.7549819689.

Adding to 141221331 its reverse (133122141), we get a palindrome (274343472).

The spelling of 141221331 in words is "one hundred forty-one million, two hundred twenty-one thousand, three hundred thirty-one".