1111212102203 has 16 divisors (see below), whose sum is σ = 1360987668480. Its totient is φ = 886432748256.

The previous prime is 1111212102167. The next prime is 1111212102239. The reversal of 1111212102203 is 3022012121111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1111212102167) and next prime (1111212102239).

It is not a de Polignac number, because 1111212102203 - 2¹² = 1111212098107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111212102283) 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 15 ways as a sum of consecutive naturals, for example, 93263483 + ... + 93275396.

It is an arithmetic number, because the mean of its divisors is an integer number (85061729280).

Almost surely, 2^{1111212102203} is an apocalyptic number.

1111212102203 is a deficient number, since it is larger than the sum of its proper divisors (249775566277).

1111212102203 is a wasteful number, since it uses less digits than its factorization.

1111212102203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186538946.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1111212102203 its reverse (3022012121111), we get a palindrome (4133224223314).

The spelling of 1111212102203 in words is "one trillion, one hundred eleven billion, two hundred twelve million, one hundred two thousand, two hundred three".