12101021021201 has 32 divisors (see below), whose sum is σ = 14803329606912. Its totient is φ = 9655574077440.

The previous prime is 12101021021189. The next prime is 12101021021261. The reversal of 12101021021201 is 10212012010121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12101021021201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12101021021261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18458291 + ... + 19102631.

It is an arithmetic number, because the mean of its divisors is an integer number (462604050216).

Almost surely, 2^{12101021021201} is an apocalyptic number.

It is an amenable number.

12101021021201 is a deficient number, since it is larger than the sum of its proper divisors (2702308585711).

12101021021201 is a wasteful number, since it uses less digits than its factorization.

12101021021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646089.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12101021021201 its reverse (10212012010121), we get a palindrome (22313033031322).

The spelling of 12101021021201 in words is "twelve trillion, one hundred one billion, twenty-one million, twenty-one thousand, two hundred one".