2222111203123 has 24 divisors (see below), whose sum is σ = 2721442801920. Its totient is φ = 1804095977040.

The previous prime is 2222111203063. The next prime is 2222111203181. The reversal of 2222111203123 is 3213021112222.

It is not a de Polignac number, because 2222111203123 - 2²¹ = 2222109105971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2222111203094 and 2222111203103.

It is not an unprimeable number, because it can be changed into a prime (2222111203723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5022778 + ... + 5447248.

It is an arithmetic number, because the mean of its divisors is an integer number (113393450080).

Almost surely, 2^{2222111203123} is an apocalyptic number.

2222111203123 is a deficient number, since it is larger than the sum of its proper divisors (499331598797).

2222111203123 is a wasteful number, since it uses less digits than its factorization.

2222111203123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430127 (or 430120 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2222111203123 its reverse (3213021112222), we get a palindrome (5435132315345).

Subtracting 2222111203123 from its reverse (3213021112222), we obtain a palindrome (990909909099).

The spelling of 2222111203123 in words is "two trillion, two hundred twenty-two billion, one hundred eleven million, two hundred three thousand, one hundred twenty-three".