1120100021221 has 8 divisors (see below), whose sum is σ = 1123717295000. Its totient is φ = 1116482994432.

The previous prime is 1120100021207. The next prime is 1120100021273. The reversal of 1120100021221 is 1221200010211.

It can be written as a sum of positive squares in 4 ways, for example, as 48098630596 + 1072001390625 = 219314^2 + 1035375^2 .

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 1120100021221 - 2⁷ = 1120100021093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120100025221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14651905 + ... + 14728153.

It is an arithmetic number, because the mean of its divisors is an integer number (140464661875).

Almost surely, 2^{1120100021221} is an apocalyptic number.

It is an amenable number.

1120100021221 is a deficient number, since it is larger than the sum of its proper divisors (3617273779).

1120100021221 is an equidigital number, since it uses as much as digits as its factorization.

1120100021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123495.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1120100021221 its reverse (1221200010211), we get a palindrome (2341300031432).

The spelling of 1120100021221 in words is "one trillion, one hundred twenty billion, one hundred million, twenty-one thousand, two hundred twenty-one".