1122112111208 has 64 divisors (see below), whose sum is σ = 2402724280320. Its totient is φ = 486305828800.

The previous prime is 1122112111207. The next prime is 1122112111213. The reversal of 1122112111208 is 8021112112211.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (1122112111207) 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, 261860 + ... + 1520787.

It is an arithmetic number, because the mean of its divisors is an integer number (37542566880).

Almost surely, 2^{1122112111208} is an apocalyptic number.

It is an amenable number.

1122112111208 is an abundant number, since it is smaller than the sum of its proper divisors (1280612169112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122112111208 is a wasteful number, since it uses less digits than its factorization.

1122112111208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782998 (or 1782994 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 23.

Adding to 1122112111208 its reverse (8021112112211), we get a palindrome (9143224223419).

The spelling of 1122112111208 in words is "one trillion, one hundred twenty-two billion, one hundred twelve million, one hundred eleven thousand, two hundred eight".