141111221 has 4 divisors (see below), whose sum is σ = 141142944. Its totient is φ = 141079500.

The previous prime is 141111211. The next prime is 141111227. The reversal of 141111221 is 122111141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 141111221 - 2¹⁸ = 140849077 is a prime.

It is a super-2 number, since 2×141111221² = 39824753384221682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 141111196 and 141111205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141111227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7835 + ... + 18536.

It is an arithmetic number, because the mean of its divisors is an integer number (35285736).

Almost surely, 2^141111221 is an apocalyptic number.

It is an amenable number.

141111221 is a deficient number, since it is larger than the sum of its proper divisors (31723).

141111221 is an equidigital number, since it uses as much as digits as its factorization.

141111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31722.

The product of its digits is 16, while the sum is 14.

The square root of 141111221 is about 11879.0244128043. The cubic root of 141111221 is about 520.6196028921.

Adding to 141111221 its reverse (122111141), we get a palindrome (263222362).

The spelling of 141111221 in words is "one hundred forty-one million, one hundred eleven thousand, two hundred twenty-one".