1120220221021 has 16 divisors (see below), whose sum is σ = 1250880700608. Its totient is φ = 994378694400.

The previous prime is 1120220221009. The next prime is 1120220221037. The reversal of 1120220221021 is 1201220220211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1120220221021 - 2²⁷ = 1120086003293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1120220220986 and 1120220221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120220221061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1096815 + ... + 1855651.

It is an arithmetic number, because the mean of its divisors is an integer number (78180043788).

Almost surely, 2^{1120220221021} is an apocalyptic number.

1120220221021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1120220221021 is a deficient number, since it is larger than the sum of its proper divisors (130660479587).

1120220221021 is a wasteful number, since it uses less digits than its factorization.

1120220221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762012.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1120220221021 its reverse (1201220220211), we get a palindrome (2321440441232).

The spelling of 1120220221021 in words is "one trillion, one hundred twenty billion, two hundred twenty million, two hundred twenty-one thousand, twenty-one".