1222234445578 has 16 divisors (see below), whose sum is σ = 1883226622464. Its totient is φ = 594497938320.

The previous prime is 1222234445533. The next prime is 1222234445639. The reversal of 1222234445578 is 8755444322221.

It is a super-2 number, since 2×1222234445578² (a number of 25 digits) contains 22 as substring.

It is a plaindrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 992418 + ... + 1851853.

It is an arithmetic number, because the mean of its divisors is an integer number (117701663904).

Almost surely, 2^{1222234445578} is an apocalyptic number.

1222234445578 is a deficient number, since it is larger than the sum of its proper divisors (660992176886).

1222234445578 is a wasteful number, since it uses less digits than its factorization.

1222234445578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850117.

The product of its digits is 4300800, while the sum is 49.

Adding to 1222234445578 its reverse (8755444322221), we get a palindrome (9977678767799).

The spelling of 1222234445578 in words is "one trillion, two hundred twenty-two billion, two hundred thirty-four million, four hundred forty-five thousand, five hundred seventy-eight".