20220220221001 has 2 divisors, whose sum is σ = 20220220221002. Its totient is φ = 20220220221000.

The previous prime is 20220220220987. The next prime is 20220220221077. The reversal of 20220220221001 is 10012202202202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20174012419401 + 46207801600 = 4491549^2 + 214960^2 .

It is a cyclic number.

It is not a de Polignac number, because 20220220221001 - 2⁵ = 20220220220969 is a prime.

It is not a weakly prime, because it can be changed into another prime (20220220225001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110110110500 + 10110110110501.

It is an arithmetic number, because the mean of its divisors is an integer number (10110110110501).

Almost surely, 2^{20220220221001} is an apocalyptic number.

It is an amenable number.

20220220221001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20220220221001 is an equidigital number, since it uses as much as digits as its factorization.

20220220221001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20220220221001 its reverse (10012202202202), we get a palindrome (30232422423203).

The spelling of 20220220221001 in words is "twenty trillion, two hundred twenty billion, two hundred twenty million, two hundred twenty-one thousand, one".