1225501200163 has 8 divisors (see below), whose sum is σ = 1243829888000. Its totient is φ = 1207173619080.

The previous prime is 1225501200139. The next prime is 1225501200167. The reversal of 1225501200163 is 3610021055221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1225501200163 - 2⁹ = 1225501199651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225501200167) 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 in 7 ways as a sum of consecutive naturals, for example, 2106838 + ... + 2624836.

It is an arithmetic number, because the mean of its divisors is an integer number (155478736000).

Almost surely, 2^{1225501200163} is an apocalyptic number.

1225501200163 is a deficient number, since it is larger than the sum of its proper divisors (18328687837).

1225501200163 is an equidigital number, since it uses as much as digits as its factorization.

1225501200163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553377.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 1225501200163 its reverse (3610021055221), we get a palindrome (4835522255384).

The spelling of 1225501200163 in words is "one trillion, two hundred twenty-five billion, five hundred one million, two hundred thousand, one hundred sixty-three".