22321000121 has 4 divisors (see below), whose sum is σ = 25509714432. Its totient is φ = 19132285812.

The previous prime is 22321000087. The next prime is 22321000151. The reversal of 22321000121 is 12100012322.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12100012322 = 2 ⋅6050006161.

It is a cyclic number.

It is not a de Polignac number, because 22321000121 - 2⁶ = 22321000057 is a prime.

It is a super-3 number, since 3×22321000121³ (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 = 22321000096 and 22321000105.

It is not an unprimeable number, because it can be changed into a prime (22321000151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1594357145 + ... + 1594357158.

It is an arithmetic number, because the mean of its divisors is an integer number (6377428608).

Almost surely, 2^22321000121 is an apocalyptic number.

It is an amenable number.

22321000121 is a deficient number, since it is larger than the sum of its proper divisors (3188714311).

22321000121 is an equidigital number, since it uses as much as digits as its factorization.

22321000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3188714310.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22321000121 its reverse (12100012322), we get a palindrome (34421012443).

The spelling of 22321000121 in words is "twenty-two billion, three hundred twenty-one million, one hundred twenty-one", and thus it is an aban number.