2220022020221 has 2 divisors, whose sum is σ = 2220022020222. Its totient is φ = 2220022020220.

The previous prime is 2220022020169. The next prime is 2220022020233. The reversal of 2220022020221 is 1220202200222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1611604860100 + 608417160121 = 1269490^2 + 780011^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2220022020221 is a prime.

It is a super-2 number, since 2×2220022020221² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2220022020221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2220022020721) 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, 1110011010110 + 1110011010111.

It is an arithmetic number, because the mean of its divisors is an integer number (1110011010111).

Almost surely, 2^{2220022020221} is an apocalyptic number.

It is an amenable number.

2220022020221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220022020221 is an equidigital number, since it uses as much as digits as its factorization.

2220022020221 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 17.

Adding to 2220022020221 its reverse (1220202200222), we get a palindrome (3440224220443).

The spelling of 2220022020221 in words is "two trillion, two hundred twenty billion, twenty-two million, twenty thousand, two hundred twenty-one".