1121228250215 has 4 divisors (see below), whose sum is σ = 1345473900264. Its totient is φ = 896982600168.

The previous prime is 1121228250139. The next prime is 1121228250239. The reversal of 1121228250215 is 5120528221211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121228250215 - 2⁸ = 1121228249959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 112122825017 + ... + 112122825026.

It is an arithmetic number, because the mean of its divisors is an integer number (336368475066).

Almost surely, 2^{1121228250215} is an apocalyptic number.

1121228250215 is a deficient number, since it is larger than the sum of its proper divisors (224245650049).

1121228250215 is an equidigital number, since it uses as much as digits as its factorization.

1121228250215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224245650048.

The product of its (nonzero) digits is 6400, while the sum is 32.

The spelling of 1121228250215 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-eight million, two hundred fifty thousand, two hundred fifteen".