1005222221407 has 2 divisors, whose sum is σ = 1005222221408. Its totient is φ = 1005222221406.

The previous prime is 1005222221347. The next prime is 1005222221431. The reversal of 1005222221407 is 7041222225001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005222221407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1005222221807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502611110703 + 502611110704.

It is an arithmetic number, because the mean of its divisors is an integer number (502611110704).

Almost surely, 2^{1005222221407} is an apocalyptic number.

1005222221407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005222221407 is an equidigital number, since it uses as much as digits as its factorization.

1005222221407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 28.

Adding to 1005222221407 its reverse (7041222225001), we get a palindrome (8046444446408).

The spelling of 1005222221407 in words is "one trillion, five billion, two hundred twenty-two million, two hundred twenty-one thousand, four hundred seven".