1225352020443 has 8 divisors (see below), whose sum is σ = 1633862568528. Its totient is φ = 816871409664.

The previous prime is 1225352020439. The next prime is 1225352020471. The reversal of 1225352020443 is 3440202535221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1225352020443 - 2² = 1225352020439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1225352020483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7388646 + ... + 7552667.

It is an arithmetic number, because the mean of its divisors is an integer number (204232821066).

Almost surely, 2^{1225352020443} is an apocalyptic number.

1225352020443 is a deficient number, since it is larger than the sum of its proper divisors (408510548085).

1225352020443 is a wasteful number, since it uses less digits than its factorization.

1225352020443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14968653.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 1225352020443 its reverse (3440202535221), we get a palindrome (4665554555664).

The spelling of 1225352020443 in words is "one trillion, two hundred twenty-five billion, three hundred fifty-two million, twenty thousand, four hundred forty-three".