21122432242302 has 16 divisors (see below), whose sum is σ = 42260435790480. Its totient is φ = 7038215529792.

The previous prime is 21122432242259. The next prime is 21122432242381. The reversal of 21122432242302 is 20324223422112.

It is a self number, because there is not a number n which added to its sum of digits gives 21122432242302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648786777 + ... + 648819332.

It is an arithmetic number, because the mean of its divisors is an integer number (2641277236905).

Almost surely, 2^{21122432242302} is an apocalyptic number.

21122432242302 is an abundant number, since it is smaller than the sum of its proper divisors (21138003548178).

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

21122432242302 is a wasteful number, since it uses less digits than its factorization.

21122432242302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297608827.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 21122432242302 its reverse (20324223422112), we get a palindrome (41446655664414).

The spelling of 21122432242302 in words is "twenty-one trillion, one hundred twenty-two billion, four hundred thirty-two million, two hundred forty-two thousand, three hundred two".