1222450587464 has 8 divisors (see below), whose sum is σ = 2292094851510. Its totient is φ = 611225293728.

The previous prime is 1222450587439. The next prime is 1222450587499. The reversal of 1222450587464 is 4647850542221.

It can be written as a sum of positive squares in only one way, i.e., 1017294132100 + 205156455364 = 1008610^2 + 452942^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76403161709 + ... + 76403161724.

Almost surely, 2^{1222450587464} is an apocalyptic number.

It is an amenable number.

1222450587464 is a deficient number, since it is larger than the sum of its proper divisors (1069644264046).

1222450587464 is a wasteful number, since it uses less digits than its factorization.

1222450587464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152806323439 (or 152806323435 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 50.

The spelling of 1222450587464 in words is "one trillion, two hundred twenty-two billion, four hundred fifty million, five hundred eighty-seven thousand, four hundred sixty-four".