1325221351452 has 48 divisors (see below), whose sum is σ = 3487039064320. Its totient is φ = 435147307056.

The previous prime is 1325221351417. The next prime is 1325221351483. The reversal of 1325221351452 is 2541531225231.

1325221351452 is a `hidden beast` number, since 1 + 3 + 252 + 2 + 1 + 351 + 4 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91564168 + ... + 91578639.

Almost surely, 2^{1325221351452} is an apocalyptic number.

1325221351452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1325221351452 is an abundant number, since it is smaller than the sum of its proper divisors (2161817712868).

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

1325221351452 is a wasteful number, since it uses less digits than its factorization.

1325221351452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183142887 (or 183142879 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

Adding to 1325221351452 its reverse (2541531225231), we get a palindrome (3866752576683).

The spelling of 1325221351452 in words is "one trillion, three hundred twenty-five billion, two hundred twenty-one million, three hundred fifty-one thousand, four hundred fifty-two".