12100221001 has 8 divisors (see below), whose sum is σ = 13201802208. Its totient is φ = 10998900000.

The previous prime is 12100220999. The next prime is 12100221043. The reversal of 12100221001 is 10012200121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12100221001 - 2¹ = 12100220999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12100221061) 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, 39501 + ... + 160501.

It is an arithmetic number, because the mean of its divisors is an integer number (1650225276).

Almost surely, 2^12100221001 is an apocalyptic number.

12100221001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12100221001 is a deficient number, since it is larger than the sum of its proper divisors (1101581207).

12100221001 is a wasteful number, since it uses less digits than its factorization.

12100221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130103.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12100221001 its reverse (10012200121), we get a palindrome (22112421122).

The spelling of 12100221001 in words is "twelve billion, one hundred million, two hundred twenty-one thousand, one".