1141221201 has 4 divisors (see below), whose sum is σ = 1521628272. Its totient is φ = 760814132.

The previous prime is 1141221163. The next prime is 1141221217. The reversal of 1141221201 is 1021221411.

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 1141221201 - 2¹⁰ = 1141220177 is a prime.

It is a super-2 number, since 2×1141221201² = 2604771659223764802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1141221401) 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, 190203531 + ... + 190203536.

It is an arithmetic number, because the mean of its divisors is an integer number (380407068).

Almost surely, 2^1141221201 is an apocalyptic number.

It is an amenable number.

1141221201 is a deficient number, since it is larger than the sum of its proper divisors (380407071).

1141221201 is an equidigital number, since it uses as much as digits as its factorization.

1141221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380407070.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1141221201 is about 33781.9656177671. The cubic root of 1141221201 is about 1045.0168113105.

Adding to 1141221201 its reverse (1021221411), we get a palindrome (2162442612).

The spelling of 1141221201 in words is "one billion, one hundred forty-one million, two hundred twenty-one thousand, two hundred one".