22002132321 has 24 divisors (see below), whose sum is σ = 34397563200. Its totient is φ = 13471720416.

The previous prime is 22002132319. The next prime is 22002132331. The reversal of 22002132321 is 12323120022.

22002132321 is a `hidden beast` number, since 220 + 0 + 213 + 232 + 1 = 666.

It is not a de Polignac number, because 22002132321 - 2¹ = 22002132319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22002132294 and 22002132303.

It is not an unprimeable number, because it can be changed into a prime (22002132331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 449211 + ... + 495776.

It is an arithmetic number, because the mean of its divisors is an integer number (1433231800).

Almost surely, 2^22002132321 is an apocalyptic number.

It is an amenable number.

22002132321 is a deficient number, since it is larger than the sum of its proper divisors (12395430879).

22002132321 is a wasteful number, since it uses less digits than its factorization.

22002132321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945205 (or 945202 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22002132321 its reverse (12323120022), we get a palindrome (34325252343).

It can be divided in two parts, 2200 and 2132321, that added together give a square (2134521 = 1461²).

The spelling of 22002132321 in words is "twenty-two billion, two million, one hundred thirty-two thousand, three hundred twenty-one".