10020021144 has 64 divisors (see below), whose sum is σ = 28777059840. Its totient is φ = 2848020480.

The previous prime is 10020021107. The next prime is 10020021149. The reversal of 10020021144 is 44112002001.

10020021144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020021149) 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, 122092 + ... + 186939.

It is an arithmetic number, because the mean of its divisors is an integer number (449641560).

Almost surely, 2^10020021144 is an apocalyptic number.

10020021144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

10020021144 is an abundant number, since it is smaller than the sum of its proper divisors (18757038696).

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

10020021144 is a wasteful number, since it uses less digits than its factorization.

10020021144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309240 (or 309236 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10020021144 its reverse (44112002001), we get a palindrome (54132023145).

The spelling of 10020021144 in words is "ten billion, twenty million, twenty-one thousand, one hundred forty-four".