1421120552608 has 96 divisors (see below), whose sum is σ = 3053796454800. Its totient is φ = 648266563584.

The previous prime is 1421120552569. The next prime is 1421120552629. The reversal of 1421120552608 is 8062550211241.

It can be written as a sum of positive squares in 8 ways, for example, as 413690803344 + 1007429749264 = 643188^2 + 1003708^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5283198 + ... + 5545666.

Almost surely, 2^{1421120552608} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421120552608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1526898227400).

1421120552608 is an abundant number, since it is smaller than the sum of its proper divisors (1632675902192).

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

1421120552608 is a wasteful number, since it uses less digits than its factorization.

1421120552608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262802 (or 262794 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

Adding to 1421120552608 its reverse (8062550211241), we get a palindrome (9483670763849).

The spelling of 1421120552608 in words is "one trillion, four hundred twenty-one billion, one hundred twenty million, five hundred fifty-two thousand, six hundred eight".