1001211222003 has 16 divisors (see below), whose sum is σ = 1352672006400. Its totient is φ = 658658091744.

The previous prime is 1001211221977. The next prime is 1001211222017. The reversal of 1001211222003 is 3002221121001.

It is not a de Polignac number, because 1001211222003 - 2³⁰ = 1000137480179 is a prime.

It is a super-2 number, since 2×1001211222003² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1001211232003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5637228 + ... + 5812121.

It is an arithmetic number, because the mean of its divisors is an integer number (84542000400).

Almost surely, 2^{1001211222003} is an apocalyptic number.

1001211222003 is a deficient number, since it is larger than the sum of its proper divisors (351460784397).

1001211222003 is a wasteful number, since it uses less digits than its factorization.

1001211222003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11449738.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1001211222003 its reverse (3002221121001), we get a palindrome (4003432343004).

The spelling of 1001211222003 in words is "one trillion, one billion, two hundred eleven million, two hundred twenty-two thousand, three".