2220302122021 has 2 divisors, whose sum is σ = 2220302122022. Its totient is φ = 2220302122020.

The previous prime is 2220302122019. The next prime is 2220302122039. The reversal of 2220302122021 is 1202212030222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1422163577025 + 798138544996 = 1192545^2 + 893386^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220302122021 - 2¹ = 2220302122019 is a prime.

Together with 2220302122019, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2220302122021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2220302122001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110151061010 + 1110151061011.

It is an arithmetic number, because the mean of its divisors is an integer number (1110151061011).

Almost surely, 2^{2220302122021} is an apocalyptic number.

It is an amenable number.

2220302122021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220302122021 is an equidigital number, since it uses as much as digits as its factorization.

2220302122021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 2220302122021 its reverse (1202212030222), we get a palindrome (3422514152243).

The spelling of 2220302122021 in words is "two trillion, two hundred twenty billion, three hundred two million, one hundred twenty-two thousand, twenty-one".