1122121112012 has 96 divisors (see below), whose sum is σ = 2106395928000. Its totient is φ = 521217720320.

The previous prime is 1122121111997. The next prime is 1122121112017. The reversal of 1122121112012 is 2102111212211.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (1122121112017) 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 31 ways as a sum of consecutive naturals, for example, 1273689812 + ... + 1273690692.

It is an arithmetic number, because the mean of its divisors is an integer number (21941624250).

Almost surely, 2^{1122121112012} is an apocalyptic number.

It is an amenable number.

1122121112012 is a deficient number, since it is larger than the sum of its proper divisors (984274815988).

1122121112012 is a wasteful number, since it uses less digits than its factorization.

1122121112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739 (or 1737 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1122121112012 its reverse (2102111212211), we get a palindrome (3224232324223).

The spelling of 1122121112012 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred twelve thousand, twelve".