21324224342132 has 12 divisors (see below), whose sum is σ = 37317427556640. Its totient is φ = 10662102183096.

The previous prime is 21324224342089. The next prime is 21324224342143. The reversal of 21324224342132 is 23124342242312.

It is a junction number, because it is equal to n+sod(n) for n = 21324224342092 and 21324224342101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4461119 + ... + 7908857.

It is an arithmetic number, because the mean of its divisors is an integer number (3109785629720).

Almost surely, 2^{21324224342132} is an apocalyptic number.

It is an amenable number.

21324224342132 is a deficient number, since it is larger than the sum of its proper divisors (15993203214508).

21324224342132 is a wasteful number, since it uses less digits than its factorization.

21324224342132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4993990 (or 4993988 counting only the distinct ones).

The product of its digits is 110592, while the sum is 35.

Adding to 21324224342132 its reverse (23124342242312), we get a palindrome (44448566584444).

The spelling of 21324224342132 in words is "twenty-one trillion, three hundred twenty-four billion, two hundred twenty-four million, three hundred forty-two thousand, one hundred thirty-two".