11121222203 has 16 divisors (see below), whose sum is σ = 13978890240. Its totient is φ = 8611988256.

The previous prime is 11121222199. The next prime is 11121222239. The reversal of 11121222203 is 30222212111.

It is a cyclic number.

It is not a de Polignac number, because 11121222203 - 2² = 11121222199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11121222283) 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, 1295843 + ... + 1304396.

It is an arithmetic number, because the mean of its divisors is an integer number (873680640).

Almost surely, 2^11121222203 is an apocalyptic number.

11121222203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11121222203 is a deficient number, since it is larger than the sum of its proper divisors (2857668037).

11121222203 is a wasteful number, since it uses less digits than its factorization.

11121222203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600306.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11121222203 its reverse (30222212111), we get a palindrome (41343434314).

The spelling of 11121222203 in words is "eleven billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred three".