22312010221 has 8 divisors (see below), whose sum is σ = 22431898944. Its totient is φ = 22192368000.

The previous prime is 22312010219. The next prime is 22312010239. The reversal of 22312010221 is 12201021322.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22312010221 - 2¹ = 22312010219 is a prime.

It is a super-3 number, since 3×22312010221³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22312010195 and 22312010204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22312010921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121341 + ... + 243613.

It is an arithmetic number, because the mean of its divisors is an integer number (2803987368).

Almost surely, 2^22312010221 is an apocalyptic number.

It is an amenable number.

22312010221 is a deficient number, since it is larger than the sum of its proper divisors (119888723).

22312010221 is a wasteful number, since it uses less digits than its factorization.

22312010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123251.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22312010221 its reverse (12201021322), we get a palindrome (34513031543).

The spelling of 22312010221 in words is "twenty-two billion, three hundred twelve million, ten thousand, two hundred twenty-one".