1225544430140 has 12 divisors (see below), whose sum is σ = 2573643303336. Its totient is φ = 490217772048.

The previous prime is 1225544430133. The next prime is 1225544430181. The reversal of 1225544430140 is 410344455221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1225544430140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30638610734 + ... + 30638610773.

It is an arithmetic number, because the mean of its divisors is an integer number (214470275278).

Almost surely, 2^{1225544430140} is an apocalyptic number.

1225544430140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225544430140 is an abundant number, since it is smaller than the sum of its proper divisors (1348098873196).

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

1225544430140 is a wasteful number, since it uses less digits than its factorization.

1225544430140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61277221516 (or 61277221514 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 1225544430140 its reverse (410344455221), we get a palindrome (1635888885361).

The spelling of 1225544430140 in words is "one trillion, two hundred twenty-five billion, five hundred forty-four million, four hundred thirty thousand, one hundred forty".