1141221213 has 24 divisors (see below), whose sum is σ = 1799347680. Its totient is φ = 691241760.

The previous prime is 1141221163. The next prime is 1141221217. The reversal of 1141221213 is 3121221411.

It is not a de Polignac number, because 1141221213 - 2¹⁸ = 1140959069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141221217) 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, 327243 + ... + 330711.

It is an arithmetic number, because the mean of its divisors is an integer number (74972820).

Almost surely, 2^1141221213 is an apocalyptic number.

It is an amenable number.

1141221213 is a deficient number, since it is larger than the sum of its proper divisors (658126467).

1141221213 is a wasteful number, since it uses less digits than its factorization.

1141221213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6809 (or 6806 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 1141221213 is about 33781.9657953767. The cubic root of 1141221213 is about 1045.0168149733.

Adding to 1141221213 its reverse (3121221411), we get a palindrome (4262442624).

The spelling of 1141221213 in words is "one billion, one hundred forty-one million, two hundred twenty-one thousand, two hundred thirteen".