1042221441 has 4 divisors (see below), whose sum is σ = 1389628592. Its totient is φ = 694814292.

The previous prime is 1042221437. The next prime is 1042221451. The reversal of 1042221441 is 1441222401.

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 not a de Polignac number, because 1042221441 - 2² = 1042221437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042221451) 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, 173703571 + ... + 173703576.

It is an arithmetic number, because the mean of its divisors is an integer number (347407148).

Almost surely, 2^1042221441 is an apocalyptic number.

It is an amenable number.

1042221441 is a deficient number, since it is larger than the sum of its proper divisors (347407151).

1042221441 is an equidigital number, since it uses as much as digits as its factorization.

1042221441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347407150.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1042221441 is about 32283.4546013899. The cubic root of 1042221441 is about 1013.8802606335.

Adding to 1042221441 its reverse (1441222401), we get a palindrome (2483443842).

The spelling of 1042221441 in words is "one billion, forty-two million, two hundred twenty-one thousand, four hundred forty-one".