12201120210021 has 8 divisors (see below), whose sum is σ = 16268324346144. Its totient is φ = 8133998106960.

The previous prime is 12201120209951. The next prime is 12201120210067. The reversal of 12201120210021 is 12001202110221.

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

It is not a de Polignac number, because 12201120210021 - 2³⁵ = 12166760471653 is a prime.

It is a super-2 number, since 2×12201120210021² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201120210421) 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, 20160375 + ... + 20756756.

It is an arithmetic number, because the mean of its divisors is an integer number (2033540543268).

Almost surely, 2^{12201120210021} is an apocalyptic number.

It is an amenable number.

12201120210021 is a deficient number, since it is larger than the sum of its proper divisors (4067204136123).

12201120210021 is an equidigital number, since it uses as much as digits as its factorization.

12201120210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41016531.

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

Adding to 12201120210021 its reverse (12001202110221), we get a palindrome (24202322320242).

The spelling of 12201120210021 in words is "twelve trillion, two hundred one billion, one hundred twenty million, two hundred ten thousand, twenty-one".