21322120213332 has 36 divisors (see below), whose sum is σ = 53914160716416. Its totient is φ = 7105187154000.

The previous prime is 21322120213253. The next prime is 21322120213343. The reversal of 21322120213332 is 23331202122312.

21322120213332 is a `hidden beast` number, since 2 + 1 + 322 + 1 + 2 + 0 + 2 + 1 + 3 + 332 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 21322120213296 and 21322120213305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90975108 + ... + 91209179.

It is an arithmetic number, because the mean of its divisors is an integer number (1497615575456).

Almost surely, 2^{21322120213332} is an apocalyptic number.

It is an amenable number.

21322120213332 is an abundant number, since it is smaller than the sum of its proper divisors (32592040503084).

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

21322120213332 is a wasteful number, since it uses less digits than its factorization.

21322120213332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182187548 (or 182187543 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 21322120213332 its reverse (23331202122312), we get a palindrome (44653322335644).

The spelling of 21322120213332 in words is "twenty-one trillion, three hundred twenty-two billion, one hundred twenty million, two hundred thirteen thousand, three hundred thirty-two".