1222505155344 has 80 divisors (see below), whose sum is σ = 3445476975360. Its totient is φ = 370430820480.

The previous prime is 1222505155231. The next prime is 1222505155397. The reversal of 1222505155344 is 4435515052221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8556139 + ... + 8697845.

It is an arithmetic number, because the mean of its divisors is an integer number (43068462192).

Almost surely, 2^{1222505155344} is an apocalyptic number.

It is an amenable number.

1222505155344 is an abundant number, since it is smaller than the sum of its proper divisors (2222971820016).

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

1222505155344 is a wasteful number, since it uses less digits than its factorization.

1222505155344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158068 (or 158062 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 1222505155344 in words is "one trillion, two hundred twenty-two billion, five hundred five million, one hundred fifty-five thousand, three hundred forty-four".