1120212020021 has 2 divisors, whose sum is σ = 1120212020022. Its totient is φ = 1120212020020.

The previous prime is 1120212020009. The next prime is 1120212020023. The reversal of 1120212020021 is 1200202120211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1010376780625 + 109835239396 = 1005175^2 + 331414^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120212020021 - 2²² = 1120207825717 is a prime.

Together with 1120212020023, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1120212019978 and 1120212020005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1120212020023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560106010010 + 560106010011.

It is an arithmetic number, because the mean of its divisors is an integer number (560106010011).

Almost surely, 2^{1120212020021} is an apocalyptic number.

It is an amenable number.

1120212020021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120212020021 is an equidigital number, since it uses as much as digits as its factorization.

1120212020021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1120212020021 its reverse (1200202120211), we get a palindrome (2320414140232).

The spelling of 1120212020021 in words is "one trillion, one hundred twenty billion, two hundred twelve million, twenty thousand, twenty-one".