1225545060000 has 240 divisors, whose sum is σ = 4022772725664. Its totient is φ = 326589312000.

The previous prime is 1225545059993. The next prime is 1225545060029. The reversal of 1225545060000 is 605455221.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 1225545060000.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 100013874 + ... + 100026126.

Almost surely, 2^{1225545060000} is an apocalyptic number.

1225545060000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225545060000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2011386362832).

1225545060000 is an abundant number, since it is smaller than the sum of its proper divisors (2797227665664).

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

1225545060000 is a wasteful number, since it uses less digits than its factorization.

1225545060000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13953 (or 13930 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 1225545060000 in words is "one trillion, two hundred twenty-five billion, five hundred forty-five million, sixty thousand".