1121122221003 has 24 divisors (see below), whose sum is σ = 1630438579328. Its totient is φ = 742336762752.

The previous prime is 1121122220989. The next prime is 1121122221061. The reversal of 1121122221003 is 3001222211211.

It is not a de Polignac number, because 1121122221003 - 2²⁸ = 1120853785547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121122221073) 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 23 ways as a sum of consecutive naturals, for example, 61926 + ... + 1498692.

Almost surely, 2^{1121122221003} is an apocalyptic number.

1121122221003 is a deficient number, since it is larger than the sum of its proper divisors (509316358325).

1121122221003 is a wasteful number, since it uses less digits than its factorization.

1121122221003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437363 (or 1437360 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1121122221003 its reverse (3001222211211), we get a palindrome (4122344432214).

The spelling of 1121122221003 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred twenty-one thousand, three".