1221400041107 has 2 divisors, whose sum is σ = 1221400041108. Its totient is φ = 1221400041106.

The previous prime is 1221400041047. The next prime is 1221400041223. The reversal of 1221400041107 is 7011400041221.

It is a weak prime.

It is an emirp because it is prime and its reverse (7011400041221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1221400041107 - 2⁸ = 1221400040851 is a prime.

It is not a weakly prime, because it can be changed into another prime (1221400041707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610700020553 + 610700020554.

It is an arithmetic number, because the mean of its divisors is an integer number (610700020554).

Almost surely, 2^{1221400041107} is an apocalyptic number.

1221400041107 is a deficient number, since it is larger than the sum of its proper divisors (1).

1221400041107 is an equidigital number, since it uses as much as digits as its factorization.

1221400041107 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 23.

Adding to 1221400041107 its reverse (7011400041221), we get a palindrome (8232800082328).

The spelling of 1221400041107 in words is "one trillion, two hundred twenty-one billion, four hundred million, forty-one thousand, one hundred seven".