12123210301021 has 8 divisors (see below), whose sum is σ = 12186835236800. Its totient is φ = 12059612408448.

The previous prime is 12123210300991. The next prime is 12123210301049. The reversal of 12123210301021 is 12010301232121.

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 12123210301021 - 2¹³ = 12123210292829 is a prime.

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 12123210301021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123210301091) 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, 5861556 + ... + 7655341.

It is an arithmetic number, because the mean of its divisors is an integer number (1523354404600).

Almost surely, 2^{12123210301021} is an apocalyptic number.

It is an amenable number.

12123210301021 is a deficient number, since it is larger than the sum of its proper divisors (63624935779).

12123210301021 is a wasteful number, since it uses less digits than its factorization.

12123210301021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13521603.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12123210301021 its reverse (12010301232121), we get a palindrome (24133511533142).

The spelling of 12123210301021 in words is "twelve trillion, one hundred twenty-three billion, two hundred ten million, three hundred one thousand, twenty-one".