220222021112021 has 2 divisors, whose sum is σ = 220222021112022. Its totient is φ = 220222021112020.

The previous prime is 220222021111979. The next prime is 220222021112039. The reversal of 220222021112021 is 120211120222022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138091030473796 + 82130990638225 = 11751214^2 + 9062615^2 .

It is a cyclic number.

It is not a de Polignac number, because 220222021112021 - 2²² = 220222016917717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220222021111984 and 220222021112002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220222021114021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110111010556010 + 110111010556011.

It is an arithmetic number, because the mean of its divisors is an integer number (110111010556011).

Almost surely, 2^{220222021112021} is an apocalyptic number.

It is an amenable number.

220222021112021 is a deficient number, since it is larger than the sum of its proper divisors (1).

220222021112021 is an equidigital number, since it uses as much as digits as its factorization.

220222021112021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 220222021112021 its reverse (120211120222022), we get a palindrome (340433141334043).

The spelling of 220222021112021 in words is "two hundred twenty trillion, two hundred twenty-two billion, twenty-one million, one hundred twelve thousand, twenty-one".