1141221141 has 12 divisors (see below), whose sum is σ = 1656245760. Its totient is φ = 757207080.

The previous prime is 1141221139. The next prime is 1141221143. The reversal of 1141221141 is 1411221411.

1141221141 is a `hidden beast` number, since 1 + 1 + 412 + 211 + 41 = 666.

It is an interprime number because it is at equal distance from previous prime (1141221139) and next prime (1141221143).

It is not a de Polignac number, because 1141221141 - 2¹ = 1141221139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141221143) 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, 298581 + ... + 302378.

It is an arithmetic number, because the mean of its divisors is an integer number (138020480).

Almost surely, 2^1141221141 is an apocalyptic number.

It is an amenable number.

1141221141 is a deficient number, since it is larger than the sum of its proper divisors (515024619).

1141221141 is a wasteful number, since it uses less digits than its factorization.

1141221141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601176 (or 601173 counting only the distinct ones).

The product of its digits is 64, while the sum is 18.

The square root of 1141221141 is about 33781.9647297193. The cubic root of 1141221141 is about 1045.0167929965.

Adding to 1141221141 its reverse (1411221411), we get a palindrome (2552442552).

The spelling of 1141221141 in words is "one billion, one hundred forty-one million, two hundred twenty-one thousand, one hundred forty-one".