2001022221227 has 2 divisors, whose sum is σ = 2001022221228. Its totient is φ = 2001022221226.

The previous prime is 2001022221217. The next prime is 2001022221239. The reversal of 2001022221227 is 7221222201002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2001022221227 - 2⁸ = 2001022220971 is a prime.

It is not a weakly prime, because it can be changed into another prime (2001022221217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000511110613 + 1000511110614.

It is an arithmetic number, because the mean of its divisors is an integer number (1000511110614).

Almost surely, 2^{2001022221227} is an apocalyptic number.

2001022221227 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001022221227 is an equidigital number, since it uses as much as digits as its factorization.

2001022221227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 23.

Adding to 2001022221227 its reverse (7221222201002), we get a palindrome (9222244422229).

The spelling of 2001022221227 in words is "two trillion, one billion, twenty-two million, two hundred twenty-one thousand, two hundred twenty-seven".