12101021001204 has 24 divisors (see below), whose sum is σ = 28272433136640. Its totient is φ = 4028428314624.

The previous prime is 12101021001203. The next prime is 12101021001257. The reversal of 12101021001204 is 40210012010121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101021001203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655659444 + ... + 655677899.

It is an arithmetic number, because the mean of its divisors is an integer number (1178018047360).

Almost surely, 2^{12101021001204} is an apocalyptic number.

It is an amenable number.

12101021001204 is an abundant number, since it is smaller than the sum of its proper divisors (16171412135436).

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

12101021001204 is a wasteful number, since it uses less digits than its factorization.

12101021001204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311338119 (or 1311338117 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12101021001204 its reverse (40210012010121), we get a palindrome (52311033011325).

The spelling of 12101021001204 in words is "twelve trillion, one hundred one billion, twenty-one million, one thousand, two hundred four".