1222220221147 has 2 divisors, whose sum is σ = 1222220221148. Its totient is φ = 1222220221146.

The previous prime is 1222220221133. The next prime is 1222220221247. The reversal of 1222220221147 is 7411220222221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222220221147 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222220221127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611110110573 + 611110110574.

It is an arithmetic number, because the mean of its divisors is an integer number (611110110574).

Almost surely, 2^{1222220221147} is an apocalyptic number.

1222220221147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222220221147 is an equidigital number, since it uses as much as digits as its factorization.

1222220221147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 28.

Adding to 1222220221147 its reverse (7411220222221), we get a palindrome (8633440443368).

The spelling of 1222220221147 in words is "one trillion, two hundred twenty-two billion, two hundred twenty million, two hundred twenty-one thousand, one hundred forty-seven".