4288001421001 has 3 divisors (see below), whose sum is σ = 4288003491751. Its totient is φ = 4287999350252.

The previous prime is 4288001420987. The next prime is 4288001421007. The reversal of 4288001421001 is 1001241008824.

The square root of 4288001421001 is 2070749.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 3805226588601 + 482774832400 = 1950699^2 + 694820^2 .

It is not a de Polignac number, because 4288001421001 - 2¹⁹ = 4288000896713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4288001421007) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1035375 + ... + 3106123.

Almost surely, 2^{4288001421001} is an apocalyptic number.

4288001421001 is the 2070749-th square number.

4288001421001 is the 1035375-th centered octagonal number.

It is an amenable number.

4288001421001 is a deficient number, since it is larger than the sum of its proper divisors (2070750).

4288001421001 is an frugal number, since it uses more digits than its factorization.

4288001421001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4141498 (or 2070749 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 31.

Adding to 4288001421001 its reverse (1001241008824), we get a palindrome (5289242429825).

The spelling of 4288001421001 in words is "four trillion, two hundred eighty-eight billion, one million, four hundred twenty-one thousand, one".