12101201321000 has 128 divisors (see below), whose sum is σ = 30894059664000. Its totient is φ = 4400010496000.

The previous prime is 12101201320973. The next prime is 12101201321009. The reversal of 12101201321000 is 12310210121.

It is a super-2 number, since 2×12101201321000² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12101201321009) 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, 127321496 + ... + 127416504.

It is an arithmetic number, because the mean of its divisors is an integer number (241359841125).

Almost surely, 2^{12101201321000} is an apocalyptic number.

12101201321000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12101201321000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15447029832000).

12101201321000 is an abundant number, since it is smaller than the sum of its proper divisors (18792858343000).

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

12101201321000 is a wasteful number, since it uses less digits than its factorization.

12101201321000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106620 (or 106606 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12101201321000 its reverse (12310210121), we get a palindrome (12113511531121).

The spelling of 12101201321000 in words is "twelve trillion, one hundred one billion, two hundred one million, three hundred twenty-one thousand".