1155221440007 has 2 divisors, whose sum is σ = 1155221440008. Its totient is φ = 1155221440006.

The previous prime is 1155221439991. The next prime is 1155221440019. The reversal of 1155221440007 is 7000441225511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1155221440007 - 2⁴ = 1155221439991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155221440507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577610720003 + 577610720004.

It is an arithmetic number, because the mean of its divisors is an integer number (577610720004).

Almost surely, 2^{1155221440007} is an apocalyptic number.

1155221440007 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155221440007 is an equidigital number, since it uses as much as digits as its factorization.

1155221440007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11200, while the sum is 32.

Adding to 1155221440007 its reverse (7000441225511), we get a palindrome (8155662665518).

The spelling of 1155221440007 in words is "one trillion, one hundred fifty-five billion, two hundred twenty-one million, four hundred forty thousand, seven".