1225550354213 has 2 divisors, whose sum is σ = 1225550354214. Its totient is φ = 1225550354212.

The previous prime is 1225550354201. The next prime is 1225550354243. The reversal of 1225550354213 is 3124530555221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 719998069729 + 505552284484 = 848527^2 + 711022^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225550354213 - 2¹⁸ = 1225550092069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1225550354243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612775177106 + 612775177107.

It is an arithmetic number, because the mean of its divisors is an integer number (612775177107).

Almost surely, 2^{1225550354213} is an apocalyptic number.

It is an amenable number.

1225550354213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225550354213 is an equidigital number, since it uses as much as digits as its factorization.

1225550354213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 1225550354213 in words is "one trillion, two hundred twenty-five billion, five hundred fifty million, three hundred fifty-four thousand, two hundred thirteen".