1222597755428 has 24 divisors (see below), whose sum is σ = 2457864928512. Its totient is φ = 521255591424.

The previous prime is 1222597755343. The next prime is 1222597755433. The reversal of 1222597755428 is 8245577952221.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113114300 + ... + 113125107.

It is an arithmetic number, because the mean of its divisors is an integer number (102411038688).

Almost surely, 2^{1222597755428} is an apocalyptic number.

It is an amenable number.

1222597755428 is an abundant number, since it is smaller than the sum of its proper divisors (1235267173084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222597755428 is a wasteful number, since it uses less digits than its factorization.

1222597755428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226239611 (or 226239609 counting only the distinct ones).

The product of its digits is 28224000, while the sum is 59.

The spelling of 1222597755428 in words is "one trillion, two hundred twenty-two billion, five hundred ninety-seven million, seven hundred fifty-five thousand, four hundred twenty-eight".