1001222021003 has 4 divisors (see below), whose sum is σ = 1005411234720. Its totient is φ = 997032807288.

The previous prime is 1001222020993. The next prime is 1001222021011. The reversal of 1001222021003 is 3001202221001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1001222021003 - 2⁴ = 1001222020987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001222021053) 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, 2094606500 + ... + 2094606977.

It is an arithmetic number, because the mean of its divisors is an integer number (251352808680).

Almost surely, 2^{1001222021003} is an apocalyptic number.

1001222021003 is a deficient number, since it is larger than the sum of its proper divisors (4189213717).

1001222021003 is an equidigital number, since it uses as much as digits as its factorization.

1001222021003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4189213716.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1001222021003 its reverse (3001202221001), we get a palindrome (4002424242004).

The spelling of 1001222021003 in words is "one trillion, one billion, two hundred twenty-two million, twenty-one thousand, three".