1120021001021 has 8 divisors (see below), whose sum is σ = 1211223229440. Its totient is φ = 1029539739312.

The previous prime is 1120021001009. The next prime is 1120021001039. The reversal of 1120021001021 is 1201001200211.

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 1120021001021 - 2²² = 1120016806717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120021000993 and 1120021001011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120021001051) 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, 180238445 + ... + 180244658.

It is an arithmetic number, because the mean of its divisors is an integer number (151402903680).

Almost surely, 2^{1120021001021} is an apocalyptic number.

It is an amenable number.

1120021001021 is a deficient number, since it is larger than the sum of its proper divisors (91202228419).

1120021001021 is a wasteful number, since it uses less digits than its factorization.

1120021001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360483355.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1120021001021 its reverse (1201001200211), we get a palindrome (2321022201232).

The spelling of 1120021001021 in words is "one trillion, one hundred twenty billion, twenty-one million, one thousand, twenty-one".