2220102022221 has 10 divisors (see below), whose sum is σ = 3316448699982. Its totient is φ = 1480068014760.

The previous prime is 2220102022219. The next prime is 2220102022223. The reversal of 2220102022221 is 1222202010222.

It is an interprime number because it is at equal distance from previous prime (2220102022219) and next prime (2220102022223).

It can be written as a sum of positive squares in only one way, i.e., 2098192808196 + 121909214025 = 1448514^2 + 349155^2 .

It is not a de Polignac number, because 2220102022221 - 2¹ = 2220102022219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2220102022194 and 2220102022203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220102022223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 13704333390 + ... + 13704333551.

Almost surely, 2^{2220102022221} is an apocalyptic number.

It is an amenable number.

2220102022221 is a deficient number, since it is larger than the sum of its proper divisors (1096346677761).

2220102022221 is an equidigital number, since it uses as much as digits as its factorization.

2220102022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27408666953 (or 27408666944 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2220102022221 its reverse (1222202010222), we get a palindrome (3442304032443).

The spelling of 2220102022221 in words is "two trillion, two hundred twenty billion, one hundred two million, twenty-two thousand, two hundred twenty-one".