1121225112045 has 48 divisors (see below), whose sum is σ = 2028613092480. Its totient is φ = 571801684608.

The previous prime is 1121225112041. The next prime is 1121225112067. The reversal of 1121225112045 is 5402115221211.

1121225112045 is a `hidden beast` number, since 1 + 1 + 2 + 122 + 511 + 20 + 4 + 5 = 666.

It is not a de Polignac number, because 1121225112045 - 2² = 1121225112041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121225112041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3043594 + ... + 3392036.

It is an arithmetic number, because the mean of its divisors is an integer number (42262772760).

Almost surely, 2^{1121225112045} is an apocalyptic number.

1121225112045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1121225112045 is a deficient number, since it is larger than the sum of its proper divisors (907387980435).

1121225112045 is a wasteful number, since it uses less digits than its factorization.

1121225112045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351586 (or 351583 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The spelling of 1121225112045 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-five million, one hundred twelve thousand, forty-five".