1122213212044 has 144 divisors (see below), whose sum is σ = 2111726453760. Its totient is φ = 521410014720.

The previous prime is 1122213212033. The next prime is 1122213212051. The reversal of 1122213212044 is 4402123122211.

It is a super-2 number, since 2×1122213212044² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 3993641184 + ... + 3993641464.

It is an arithmetic number, because the mean of its divisors is an integer number (14664767040).

Almost surely, 2^{1122213212044} is an apocalyptic number.

It is an amenable number.

1122213212044 is a deficient number, since it is larger than the sum of its proper divisors (989513241716).

1122213212044 is a wasteful number, since it uses less digits than its factorization.

1122213212044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728 (or 689 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1122213212044 its reverse (4402123122211), we get a palindrome (5524336334255).

The spelling of 1122213212044 in words is "one trillion, one hundred twenty-two billion, two hundred thirteen million, two hundred twelve thousand, forty-four".