22321003121 has 8 divisors (see below), whose sum is σ = 22391346600. Its totient is φ = 22250696832.

The previous prime is 22321003109. The next prime is 22321003123. The reversal of 22321003121 is 12130012322.

It can be written as a sum of positive squares in 4 ways, for example, as 2669168896 + 19651834225 = 51664^2 + 140185^2 .

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 22321003121 - 2²² = 22316808817 is a prime.

It is a super-3 number, since 3×22321003121³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22321003121.

It is not an unprimeable number, because it can be changed into a prime (22321003123) 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, 1645061 + ... + 1658573.

It is an arithmetic number, because the mean of its divisors is an integer number (2798918325).

Almost surely, 2^22321003121 is an apocalyptic number.

It is an amenable number.

22321003121 is a deficient number, since it is larger than the sum of its proper divisors (70343479).

22321003121 is a wasteful number, since it uses less digits than its factorization.

22321003121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18595.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 22321003121 its reverse (12130012322), we get a palindrome (34451015443).

The spelling of 22321003121 in words is "twenty-two billion, three hundred twenty-one million, three thousand, one hundred twenty-one".