21363415432422 has 64 divisors (see below), whose sum is σ = 48977020846080. Its totient is φ = 6085561499424.

The previous prime is 21363415432417. The next prime is 21363415432427. The reversal of 21363415432422 is 22423451436312.

It is an interprime number because it is at equal distance from previous prime (21363415432417) and next prime (21363415432427).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21363415432427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21708783 + ... + 22671525.

It is an arithmetic number, because the mean of its divisors is an integer number (765265950720).

Almost surely, 2^{21363415432422} is an apocalyptic number.

21363415432422 is an abundant number, since it is smaller than the sum of its proper divisors (27613605413658).

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

21363415432422 is a wasteful number, since it uses less digits than its factorization.

21363415432422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964337.

The product of its digits is 829440, while the sum is 42.

Adding to 21363415432422 its reverse (22423451436312), we get a palindrome (43786866868734).

The spelling of 21363415432422 in words is "twenty-one trillion, three hundred sixty-three billion, four hundred fifteen million, four hundred thirty-two thousand, four hundred twenty-two".