1225224445145 has 16 divisors (see below), whose sum is σ = 1556803421568. Its totient is φ = 922493694720.

The previous prime is 1225224445079. The next prime is 1225224445253. The reversal of 1225224445145 is 5415444225221.

It is not a de Polignac number, because 1225224445145 - 2⁸ = 1225224444889 is a prime.

It is a super-2 number, since 2×1225224445145² (a number of 25 digits) contains 22 as substring.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 2816930 + ... + 3222660.

It is an arithmetic number, because the mean of its divisors is an integer number (97300213848).

Almost surely, 2^{1225224445145} is an apocalyptic number.

It is an amenable number.

1225224445145 is a deficient number, since it is larger than the sum of its proper divisors (331578976423).

1225224445145 is a wasteful number, since it uses less digits than its factorization.

1225224445145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441280.

The product of its digits is 512000, while the sum is 41.

The spelling of 1225224445145 in words is "one trillion, two hundred twenty-five billion, two hundred twenty-four million, four hundred forty-five thousand, one hundred forty-five".