1012221443 has 8 divisors (see below), whose sum is σ = 1020681216. Its totient is φ = 1003792000.

The previous prime is 1012221389. The next prime is 1012221493. The reversal of 1012221443 is 3441222101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1012221443 - 2¹⁴ = 1012205059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012221493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62078 + ... + 76668.

It is an arithmetic number, because the mean of its divisors is an integer number (127585152).

Almost surely, 2^1012221443 is an apocalyptic number.

1012221443 is a deficient number, since it is larger than the sum of its proper divisors (8459773).

1012221443 is a wasteful number, since it uses less digits than its factorization.

1012221443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15165.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1012221443 is about 31815.4277513284. The cubic root of 1012221443 is about 1004.0573301416.

Adding to 1012221443 its reverse (3441222101), we get a palindrome (4453443544).

The spelling of 1012221443 in words is "one billion, twelve million, two hundred twenty-one thousand, four hundred forty-three".