22061232321 has 16 divisors (see below), whose sum is σ = 30454152960. Its totient is φ = 14188728960.

The previous prime is 22061232307. The next prime is 22061232331. The reversal of 22061232321 is 12323216022.

It is not a de Polignac number, because 22061232321 - 2¹⁵ = 22061199553 is a prime.

It is a super-2 number, since 2×22061232321² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22061232291 and 22061232300.

It is not an unprimeable number, because it can be changed into a prime (22061232331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4101 + ... + 210093.

It is an arithmetic number, because the mean of its divisors is an integer number (1903384560).

Almost surely, 2^22061232321 is an apocalyptic number.

It is an amenable number.

22061232321 is a deficient number, since it is larger than the sum of its proper divisors (8392920639).

22061232321 is a wasteful number, since it uses less digits than its factorization.

22061232321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207256.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 22061232321 its reverse (12323216022), we get a palindrome (34384448343).

The spelling of 22061232321 in words is "twenty-two billion, sixty-one million, two hundred thirty-two thousand, three hundred twenty-one".