10215021340 has 48 divisors (see below), whose sum is σ = 21795528384. Its totient is φ = 4020710400.

The previous prime is 10215021337. The next prime is 10215021359. The reversal of 10215021340 is 4312051201.

10215021340 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 an unprimeable number.

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, 761572 + ... + 774868.

It is an arithmetic number, because the mean of its divisors is an integer number (454073508).

Almost surely, 2^10215021340 is an apocalyptic number.

10215021340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10215021340 is an abundant number, since it is smaller than the sum of its proper divisors (11580507044).

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

10215021340 is a wasteful number, since it uses less digits than its factorization.

10215021340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13918 (or 13916 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 10215021340 its reverse (4312051201), we get a palindrome (14527072541).

The spelling of 10215021340 in words is "ten billion, two hundred fifteen million, twenty-one thousand, three hundred forty".