120022221020021 has 2 divisors, whose sum is σ = 120022221020022. Its totient is φ = 120022221020020.

The previous prime is 120022221020003. The next prime is 120022221020041. The reversal of 120022221020021 is 120020122220021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111804189062500 + 8218031957521 = 10573750^2 + 2866711^2 .

It is a cyclic number.

It is not a de Polignac number, because 120022221020021 - 2⁶ = 120022221019957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120022221020041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60011110510010 + 60011110510011.

It is an arithmetic number, because the mean of its divisors is an integer number (60011110510011).

Almost surely, 2^{120022221020021} is an apocalyptic number.

It is an amenable number.

120022221020021 is a deficient number, since it is larger than the sum of its proper divisors (1).

120022221020021 is an equidigital number, since it uses as much as digits as its factorization.

120022221020021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 120022221020021 its reverse (120020122220021), we get a palindrome (240042343240042).

The spelling of 120022221020021 in words is "one hundred twenty trillion, twenty-two billion, two hundred twenty-one million, twenty thousand, twenty-one".