12020221101 has 8 divisors (see below), whose sum is σ = 18316527424. Its totient is φ = 6868697760.

The previous prime is 12020221097. The next prime is 12020221111. The reversal of 12020221101 is 10112202021.

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

It is not a de Polignac number, because 12020221101 - 2² = 12020221097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020221111) 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, 286195720 + ... + 286195761.

It is an arithmetic number, because the mean of its divisors is an integer number (2289565928).

Almost surely, 2^12020221101 is an apocalyptic number.

It is an amenable number.

12020221101 is a deficient number, since it is larger than the sum of its proper divisors (6296306323).

12020221101 is an equidigital number, since it uses as much as digits as its factorization.

12020221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572391491.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12020221101 its reverse (10112202021), we get a palindrome (22132423122).

The spelling of 12020221101 in words is "twelve billion, twenty million, two hundred twenty-one thousand, one hundred one".