21350525234422 has 16 divisors (see below), whose sum is σ = 32572206550800. Its totient is φ = 10493163148000.

The previous prime is 21350525234419. The next prime is 21350525234431. The reversal of 21350525234422 is 22443252505312.

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, 8954329 + ... + 11085172.

It is an arithmetic number, because the mean of its divisors is an integer number (2035762909425).

Almost surely, 2^{21350525234422} is an apocalyptic number.

21350525234422 is a deficient number, since it is larger than the sum of its proper divisors (11221681316378).

21350525234422 is a wasteful number, since it uses less digits than its factorization.

21350525234422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20048591.

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 21350525234422 its reverse (22443252505312), we get a palindrome (43793777739734).

The spelling of 21350525234422 in words is "twenty-one trillion, three hundred fifty billion, five hundred twenty-five million, two hundred thirty-four thousand, four hundred twenty-two".