1021221002227 has 2 divisors, whose sum is σ = 1021221002228. Its totient is φ = 1021221002226.

The previous prime is 1021221002209. The next prime is 1021221002233. The reversal of 1021221002227 is 7222001221201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021221002227 - 2²⁷ = 1021086784499 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021221002198 and 1021221002207.

It is not a weakly prime, because it can be changed into another prime (1021221002267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510610501113 + 510610501114.

It is an arithmetic number, because the mean of its divisors is an integer number (510610501114).

Almost surely, 2^{1021221002227} is an apocalyptic number.

1021221002227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021221002227 is an equidigital number, since it uses as much as digits as its factorization.

1021221002227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

Adding to 1021221002227 its reverse (7222001221201), we get a palindrome (8243222223428).

The spelling of 1021221002227 in words is "one trillion, twenty-one billion, two hundred twenty-one million, two thousand, two hundred twenty-seven".