1223250455530 has 16 divisors (see below), whose sum is σ = 2206821145824. Its totient is φ = 488195665360.

The previous prime is 1223250455527. The next prime is 1223250455587. The reversal of 1223250455530 is 355540523221.

It is a self number, because there is not a number n which added to its sum of digits gives 1223250455530.

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 in 7 ways as a sum of consecutive naturals, for example, 138059956 + ... + 138068815.

It is an arithmetic number, because the mean of its divisors is an integer number (137926321614).

Almost surely, 2^{1223250455530} is an apocalyptic number.

1223250455530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223250455530 is a deficient number, since it is larger than the sum of its proper divisors (983570690294).

1223250455530 is a wasteful number, since it uses less digits than its factorization.

1223250455530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276129221.

The product of its (nonzero) digits is 180000, while the sum is 37.

Adding to 1223250455530 its reverse (355540523221), we get a palindrome (1578790978751).

The spelling of 1223250455530 in words is "one trillion, two hundred twenty-three billion, two hundred fifty million, four hundred fifty-five thousand, five hundred thirty".