21032144202 has 32 divisors (see below), whose sum is σ = 44286520320. Its totient is φ = 6640481520.

The previous prime is 21032144143. The next prime is 21032144249. The reversal of 21032144202 is 20244123012.

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, 734127 + ... + 762237.

It is an arithmetic number, because the mean of its divisors is an integer number (1383953760).

Almost surely, 2^21032144202 is an apocalyptic number.

21032144202 is an abundant number, since it is smaller than the sum of its proper divisors (23254376118).

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

21032144202 is a wasteful number, since it uses less digits than its factorization.

21032144202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34698.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 21032144202 its reverse (20244123012), we get a palindrome (41276267214).

The spelling of 21032144202 in words is "twenty-one billion, thirty-two million, one hundred forty-four thousand, two hundred two".