10501252421 has 16 divisors (see below), whose sum is σ = 11879806848. Its totient is φ = 9198360000.

The previous prime is 10501252337. The next prime is 10501252423. The reversal of 10501252421 is 12425210501.

10501252421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10501252421 is a prime.

It is a super-2 number, since 2×10501252421² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10501252423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83330 + ... + 167171.

It is an arithmetic number, because the mean of its divisors is an integer number (742487928).

Almost surely, 2^10501252421 is an apocalyptic number.

10501252421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10501252421 is a deficient number, since it is larger than the sum of its proper divisors (1378554427).

10501252421 is a wasteful number, since it uses less digits than its factorization.

10501252421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250652.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 10501252421 its reverse (12425210501), we get a palindrome (22926462922).

The spelling of 10501252421 in words is "ten billion, five hundred one million, two hundred fifty-two thousand, four hundred twenty-one".