22230121 has 4 divisors (see below), whose sum is σ = 23196672. Its totient is φ = 21263572.

The previous prime is 22230119. The next prime is 22230149. The reversal of 22230121 is 12103222.

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: 12103222 = 2 ⋅6051611.

It is a cyclic number.

It is not a de Polignac number, because 22230121 - 2¹ = 22230119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22230421) 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, 483241 + ... + 483286.

It is an arithmetic number, because the mean of its divisors is an integer number (5799168).

Almost surely, 2^22230121 is an apocalyptic number.

It is an amenable number.

22230121 is a deficient number, since it is larger than the sum of its proper divisors (966551).

22230121 is an equidigital number, since it uses as much as digits as its factorization.

22230121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966550.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 22230121 is about 4714.8829253758. The cubic root of 22230121 is about 281.1775282573.

Adding to 22230121 its reverse (12103222), we get a palindrome (34333343).

The spelling of 22230121 in words is "twenty-two million, two hundred thirty thousand, one hundred twenty-one".