2222220221801 has 2 divisors, whose sum is σ = 2222220221802. Its totient is φ = 2222220221800.

The previous prime is 2222220221789. The next prime is 2222220221827. The reversal of 2222220221801 is 1081220222222.

It is an a-pointer prime, because the next prime (2222220221827) can be obtained adding 2222220221801 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2077172737600 + 145047484201 = 1441240^2 + 380851^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222220221801 - 2¹⁰ = 2222220220777 is a prime.

It is not a weakly prime, because it can be changed into another prime (2222220226801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111110110900 + 1111110110901.

It is an arithmetic number, because the mean of its divisors is an integer number (1111110110901).

Almost surely, 2^{2222220221801} is an apocalyptic number.

It is an amenable number.

2222220221801 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222220221801 is an equidigital number, since it uses as much as digits as its factorization.

2222220221801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2048, while the sum is 26.

The spelling of 2222220221801 in words is "two trillion, two hundred twenty-two billion, two hundred twenty million, two hundred twenty-one thousand, eight hundred one".