1041221321 has 16 divisors (see below), whose sum is σ = 1281329280. Its totient is φ = 825734400.

The previous prime is 1041221267. The next prime is 1041221327. The reversal of 1041221321 is 1231221401.

It is a cyclic number.

It is not a de Polignac number, because 1041221321 - 2²⁶ = 974112457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1041221321.

It is not an unprimeable number, because it can be changed into a prime (1041221327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67130 + ... + 81171.

It is an arithmetic number, because the mean of its divisors is an integer number (80083080).

Almost surely, 2^1041221321 is an apocalyptic number.

It is an amenable number.

1041221321 is a deficient number, since it is larger than the sum of its proper divisors (240107959).

1041221321 is a wasteful number, since it uses less digits than its factorization.

1041221321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148384.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1041221321 is about 32267.9612154223. The cubic root of 1041221321 is about 1013.5558489470. Note that the first 3 decimals are identical.

Adding to 1041221321 its reverse (1231221401), we get a palindrome (2272442722).

The spelling of 1041221321 in words is "one billion, forty-one million, two hundred twenty-one thousand, three hundred twenty-one".