11221111111203 has 12 divisors (see below), whose sum is σ = 18523738977328. Its totient is φ = 6412063492080.

The previous prime is 11221111111181. The next prime is 11221111111229. The reversal of 11221111111203 is 30211111112211.

It is not a de Polignac number, because 11221111111203 - 2³³ = 11212521176611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11221111311203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89056437328 + ... + 89056437453.

Almost surely, 2^{11221111111203} is an apocalyptic number.

11221111111203 is a deficient number, since it is larger than the sum of its proper divisors (7302627866125).

11221111111203 is a wasteful number, since it uses less digits than its factorization.

11221111111203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178112874794 (or 178112874791 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 18.

Adding to 11221111111203 its reverse (30211111112211), we get a palindrome (41432222223414).

The spelling of 11221111111203 in words is "eleven trillion, two hundred twenty-one billion, one hundred eleven million, one hundred eleven thousand, two hundred three".