1121221102004 has 24 divisors (see below), whose sum is σ = 1968805893600. Its totient is φ = 558706799456.

The previous prime is 1121221102003. The next prime is 1121221102021. The reversal of 1121221102004 is 4002011221211.

It is a super-4 number, since 4×1121221102004⁴ (a number of 49 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121221102003) 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 7 ways as a sum of consecutive naturals, for example, 2497979 + ... + 2912445.

It is an arithmetic number, because the mean of its divisors is an integer number (82033578900).

Almost surely, 2^{1121221102004} is an apocalyptic number.

It is an amenable number.

1121221102004 is a deficient number, since it is larger than the sum of its proper divisors (847584791596).

1121221102004 is a wasteful number, since it uses less digits than its factorization.

1121221102004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416767 (or 416765 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1121221102004 its reverse (4002011221211), we get a palindrome (5123232323215).

The spelling of 1121221102004 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-one million, one hundred two thousand, four".