1442000221 has 4 divisors (see below), whose sum is σ = 1444087744. Its totient is φ = 1439912700.

The previous prime is 1442000107. The next prime is 1442000233. The reversal of 1442000221 is 1220002441.

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 1442000221 - 2⁷ = 1442000093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1442000195 and 1442000204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442000621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1042725 + ... + 1044106.

It is an arithmetic number, because the mean of its divisors is an integer number (361021936).

Almost surely, 2^1442000221 is an apocalyptic number.

It is an amenable number.

1442000221 is a deficient number, since it is larger than the sum of its proper divisors (2087523).

1442000221 is an equidigital number, since it uses as much as digits as its factorization.

1442000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2087522.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1442000221 is about 37973.6780020055. The cubic root of 1442000221 is about 1129.7658483173.

Adding to 1442000221 its reverse (1220002441), we get a palindrome (2662002662).

The spelling of 1442000221 in words is "one billion, four hundred forty-two million, two hundred twenty-one", and thus it is an aban number.