1120231221021 has 64 divisors (see below), whose sum is σ = 1822580455680. Its totient is φ = 674395488000.

The previous prime is 1120231221013. The next prime is 1120231221037. The reversal of 1120231221021 is 1201221320211.

1120231221021 is a `hidden beast` number, since 1 + 120 + 2 + 312 + 210 + 21 = 666.

It is not a de Polignac number, because 1120231221021 - 2³ = 1120231221013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1120231220985 and 1120231221003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120231221121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 60671731 + ... + 60690191.

It is an arithmetic number, because the mean of its divisors is an integer number (28477819620).

Almost surely, 2^{1120231221021} is an apocalyptic number.

1120231221021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1120231221021 is a deficient number, since it is larger than the sum of its proper divisors (702349234659).

1120231221021 is a wasteful number, since it uses less digits than its factorization.

1120231221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19835 (or 19829 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1120231221021 its reverse (1201221320211), we get a palindrome (2321452541232).

The spelling of 1120231221021 in words is "one trillion, one hundred twenty billion, two hundred thirty-one million, two hundred twenty-one thousand, twenty-one".