10521515422 has 16 divisors (see below), whose sum is σ = 17298630144. Its totient is φ = 4759839000.

The previous prime is 10521515401. The next prime is 10521515453. The reversal of 10521515422 is 22451512501.

10521515422 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10521515422² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1128654 + ... + 1137937.

It is an arithmetic number, because the mean of its divisors is an integer number (1081164384).

Almost surely, 2^10521515422 is an apocalyptic number.

10521515422 is a deficient number, since it is larger than the sum of its proper divisors (6777114722).

10521515422 is a wasteful number, since it uses less digits than its factorization.

10521515422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266815.

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 10521515422 in words is "ten billion, five hundred twenty-one million, five hundred fifteen thousand, four hundred twenty-two".