2010220221221 has 2 divisors, whose sum is σ = 2010220221222. Its totient is φ = 2010220221220.

The previous prime is 2010220221211. The next prime is 2010220221241. The reversal of 2010220221221 is 1221220220102.

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., 1097266725025 + 912953496196 = 1047505^2 + 955486^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2010220221221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2010220221221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2010220221211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005110110610 + 1005110110611.

It is an arithmetic number, because the mean of its divisors is an integer number (1005110110611).

Almost surely, 2^{2010220221221} is an apocalyptic number.

It is an amenable number.

2010220221221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010220221221 is an equidigital number, since it uses as much as digits as its factorization.

2010220221221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2010220221221 its reverse (1221220220102), we get a palindrome (3231440441323).

The spelling of 2010220221221 in words is "two trillion, ten billion, two hundred twenty million, two hundred twenty-one thousand, two hundred twenty-one".