1230222121 has 8 divisors (see below), whose sum is σ = 1247166720. Its totient is φ = 1213378608.

The previous prime is 1230222113. The next prime is 1230222151. The reversal of 1230222121 is 1212220321.

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 1230222121 - 2³ = 1230222113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230222095 and 1230222104.

It is not an unprimeable number, because it can be changed into a prime (1230222101) 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, 601 + ... + 49606.

It is an arithmetic number, because the mean of its divisors is an integer number (155895840).

Almost surely, 2^1230222121 is an apocalyptic number.

It is an amenable number.

1230222121 is a deficient number, since it is larger than the sum of its proper divisors (16944599).

1230222121 is a wasteful number, since it uses less digits than its factorization.

1230222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50543.

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

The square root of 1230222121 is about 35074.5223916164. The cubic root of 1230222121 is about 1071.5057616371.

Adding to 1230222121 its reverse (1212220321), we get a palindrome (2442442442).

The spelling of 1230222121 in words is "one billion, two hundred thirty million, two hundred twenty-two thousand, one hundred twenty-one".