1225405205013 has 32 divisors (see below), whose sum is σ = 1854528359040. Its totient is φ = 712915562240.

The previous prime is 1225405204997. The next prime is 1225405205033. The reversal of 1225405205013 is 3105025045221.

It is a cyclic number.

It is not a de Polignac number, because 1225405205013 - 2⁴ = 1225405204997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225405205033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3535206 + ... + 3866327.

It is an arithmetic number, because the mean of its divisors is an integer number (57954011220).

Almost surely, 2^{1225405205013} is an apocalyptic number.

It is an amenable number.

1225405205013 is a deficient number, since it is larger than the sum of its proper divisors (629123154027).

1225405205013 is a wasteful number, since it uses less digits than its factorization.

1225405205013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7401749.

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 1225405205013 in words is "one trillion, two hundred twenty-five billion, four hundred five million, two hundred five thousand, thirteen".