1223230155121 has 8 divisors (see below), whose sum is σ = 1320074945280. Its totient is φ = 1126778245392.

The previous prime is 1223230155079. The next prime is 1223230155137. The reversal of 1223230155121 is 1215510323221.

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 1223230155121 - 2¹¹ = 1223230153073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1223230155121.

It is not an unprimeable number, because it can be changed into a prime (1223230155151) 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, 98213635 + ... + 98226088.

It is an arithmetic number, because the mean of its divisors is an integer number (165009368160).

Almost surely, 2^{1223230155121} is an apocalyptic number.

It is an amenable number.

1223230155121 is a deficient number, since it is larger than the sum of its proper divisors (96844790159).

1223230155121 is a wasteful number, since it uses less digits than its factorization.

1223230155121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196440215.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 1223230155121 its reverse (1215510323221), we get a palindrome (2438740478342).

The spelling of 1223230155121 in words is "one trillion, two hundred twenty-three billion, two hundred thirty million, one hundred fifty-five thousand, one hundred twenty-one".