21132422414 has 4 divisors (see below), whose sum is σ = 31698633624. Its totient is φ = 10566211206.

The previous prime is 21132422411. The next prime is 21132422419. The reversal of 21132422414 is 41422423112.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21132422411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5283105602 + ... + 5283105605.

It is an arithmetic number, because the mean of its divisors is an integer number (7924658406).

Almost surely, 2^21132422414 is an apocalyptic number.

21132422414 is a deficient number, since it is larger than the sum of its proper divisors (10566211210).

21132422414 is a wasteful number, since it uses less digits than its factorization.

21132422414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10566211209.

The product of its digits is 3072, while the sum is 26.

Adding to 21132422414 its reverse (41422423112), we get a palindrome (62554845526).

The spelling of 21132422414 in words is "twenty-one billion, one hundred thirty-two million, four hundred twenty-two thousand, four hundred fourteen".