10100021240 has 32 divisors (see below), whose sum is σ = 22734185760. Its totient is φ = 4038384000.

The previous prime is 10100021237. The next prime is 10100021279. The reversal of 10100021240 is 4212000101.

It is a super-2 number, since 2×10100021240² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52550 + ... + 151530.

It is an arithmetic number, because the mean of its divisors is an integer number (710443305).

Almost surely, 2^10100021240 is an apocalyptic number.

10100021240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10100021240 is an abundant number, since it is smaller than the sum of its proper divisors (12634164520).

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

10100021240 is a wasteful number, since it uses less digits than its factorization.

10100021240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101543 (or 101539 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10100021240 its reverse (4212000101), we get a palindrome (14312021341).

The spelling of 10100021240 in words is "ten billion, one hundred million, twenty-one thousand, two hundred forty".