1225243353000 has 128 divisors (see below), whose sum is σ = 3823169725440. Its totient is φ = 326696480000.

The previous prime is 1225243352929. The next prime is 1225243353011. The reversal of 1225243353000 is 3533425221.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40247785 + ... + 40278215.

It is an arithmetic number, because the mean of its divisors is an integer number (29868513480).

Almost surely, 2^{1225243353000} is an apocalyptic number.

1225243353000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225243353000 is an abundant number, since it is smaller than the sum of its proper divisors (2597926372440).

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

1225243353000 is a wasteful number, since it uses less digits than its factorization.

1225243353000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43876 (or 43862 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 1225243353000 its reverse (3533425221), we get a palindrome (1228776778221).

The spelling of 1225243353000 in words is "one trillion, two hundred twenty-five billion, two hundred forty-three million, three hundred fifty-three thousand".