11212012222203 has 12 divisors (see below), whose sum is σ = 16187757291960. Its totient is φ = 6899699828736.

The previous prime is 11212012222181. The next prime is 11212012222261. The reversal of 11212012222203 is 30222221021211.

It is not a de Polignac number, because 11212012222203 - 2²¹ = 11212010125051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11212012222203.

It is not an unprimeable number, because it can be changed into a prime (11212012222403) 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 11 ways as a sum of consecutive naturals, for example, 11057210758 + ... + 11057211771.

It is an arithmetic number, because the mean of its divisors is an integer number (1348979774330).

Almost surely, 2^{11212012222203} is an apocalyptic number.

11212012222203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11212012222203 is a deficient number, since it is larger than the sum of its proper divisors (4975745069757).

11212012222203 is a wasteful number, since it uses less digits than its factorization.

11212012222203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22114422558 (or 22114422545 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 11212012222203 its reverse (30222221021211), we get a palindrome (41434233243414).

The spelling of 11212012222203 in words is "eleven trillion, two hundred twelve billion, twelve million, two hundred twenty-two thousand, two hundred three".