2220102221021 has 2 divisors, whose sum is σ = 2220102221022. Its totient is φ = 2220102221020.

The previous prime is 2220102220993. The next prime is 2220102221093. The reversal of 2220102221021 is 1201222010222.

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., 1150406404900 + 1069695816121 = 1072570^2 + 1034261^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220102221021 - 2²² = 2220098026717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2220102221221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110051110510 + 1110051110511.

It is an arithmetic number, because the mean of its divisors is an integer number (1110051110511).

Almost surely, 2^{2220102221021} is an apocalyptic number.

It is an amenable number.

2220102221021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220102221021 is an equidigital number, since it uses as much as digits as its factorization.

2220102221021 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 17.

Adding to 2220102221021 its reverse (1201222010222), we get a palindrome (3421324231243).

The spelling of 2220102221021 in words is "two trillion, two hundred twenty billion, one hundred two million, two hundred twenty-one thousand, twenty-one".