1225512144726 has 16 divisors (see below), whose sum is σ = 2451111817728. Its totient is φ = 408489460200.

The previous prime is 1225512144677. The next prime is 1225512144737. The reversal of 1225512144726 is 6274412155221.

It is a congruent number.

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, 3464290 + ... + 3801621.

It is an arithmetic number, because the mean of its divisors is an integer number (153194488608).

Almost surely, 2^{1225512144726} is an apocalyptic number.

1225512144726 is an abundant number, since it is smaller than the sum of its proper divisors (1225599673002).

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

1225512144726 is a wasteful number, since it uses less digits than its factorization.

1225512144726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7294027.

The product of its digits is 268800, while the sum is 42.

Adding to 1225512144726 its reverse (6274412155221), we get a palindrome (7499924299947).

The spelling of 1225512144726 in words is "one trillion, two hundred twenty-five billion, five hundred twelve million, one hundred forty-four thousand, seven hundred twenty-six".