12001223121230 has 64 divisors (see below), whose sum is σ = 26022217144320. Its totient is φ = 3892950720000.

The previous prime is 12001223121229. The next prime is 12001223121269. The reversal of 12001223121230 is 3212132210021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5008811 + ... + 7006470.

It is an arithmetic number, because the mean of its divisors is an integer number (406597142880).

Almost surely, 2^{12001223121230} is an apocalyptic number.

12001223121230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12001223121230 is an abundant number, since it is smaller than the sum of its proper divisors (14020994023090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12001223121230 is a wasteful number, since it uses less digits than its factorization.

12001223121230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12016065.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12001223121230 its reverse (3212132210021), we get a palindrome (15213355331251).

The spelling of 12001223121230 in words is "twelve trillion, one billion, two hundred twenty-three million, one hundred twenty-one thousand, two hundred thirty".