1121240411021 has 8 divisors (see below), whose sum is σ = 1164525012000. Its totient is φ = 1078263886000.

The previous prime is 1121240410957. The next prime is 1121240411023. The reversal of 1121240411021 is 1201140421211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121240411021 - 2⁶ = 1121240410957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121240410984 and 1121240411002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121240411023) 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, 77011571 + ... + 77026128.

It is an arithmetic number, because the mean of its divisors is an integer number (145565626500).

Almost surely, 2^{1121240411021} is an apocalyptic number.

It is an amenable number.

1121240411021 is a deficient number, since it is larger than the sum of its proper divisors (43284600979).

1121240411021 is a wasteful number, since it uses less digits than its factorization.

1121240411021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154037979.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 1121240411021 its reverse (1201140421211), we get a palindrome (2322380832232).

The spelling of 1121240411021 in words is "one trillion, one hundred twenty-one billion, two hundred forty million, four hundred eleven thousand, twenty-one".