21352525201142 has 16 divisors (see below), whose sum is σ = 32339963335680. Its totient is φ = 10572538810152.

The previous prime is 21352525201121. The next prime is 21352525201157. The reversal of 21352525201142 is 24110252525312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44633609 + ... + 45109467.

It is an arithmetic number, because the mean of its divisors is an integer number (2021247708480).

Almost surely, 2^{21352525201142} is an apocalyptic number.

21352525201142 is a deficient number, since it is larger than the sum of its proper divisors (10987438134538).

21352525201142 is a wasteful number, since it uses less digits than its factorization.

21352525201142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693787.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 21352525201142 its reverse (24110252525312), we get a palindrome (45462777726454).

The spelling of 21352525201142 in words is "twenty-one trillion, three hundred fifty-two billion, five hundred twenty-five million, two hundred one thousand, one hundred forty-two".