1141002221 has 4 divisors (see below), whose sum is σ = 1165278912. Its totient is φ = 1116725532.

The previous prime is 1141002169. The next prime is 1141002227. The reversal of 1141002221 is 1222001411.

It is a happy number.

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 1141002221 - 2⁶ = 1141002157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1141002196 and 1141002205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141002227) 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, 12138275 + ... + 12138368.

It is an arithmetic number, because the mean of its divisors is an integer number (291319728).

Almost surely, 2^1141002221 is an apocalyptic number.

It is an amenable number.

1141002221 is a deficient number, since it is larger than the sum of its proper divisors (24276691).

1141002221 is an equidigital number, since it uses as much as digits as its factorization.

1141002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24276690.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1141002221 is about 33778.7243838485. The cubic root of 1141002221 is about 1044.9499670039.

Adding to 1141002221 its reverse (1222001411), we get a palindrome (2363003632).

The spelling of 1141002221 in words is "one billion, one hundred forty-one million, two thousand, two hundred twenty-one".