12221102002021 has 8 divisors (see below), whose sum is σ = 13464112377888. Its totient is φ = 11000091810000.

The previous prime is 12221102002013. The next prime is 12221102002049. The reversal of 12221102002021 is 12020020112221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12221102002021 - 2³ = 12221102002013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12221102001986 and 12221102002004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221102002051) 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, 5500044795 + ... + 5500047016.

It is an arithmetic number, because the mean of its divisors is an integer number (1683014047236).

Almost surely, 2^{12221102002021} is an apocalyptic number.

12221102002021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12221102002021 is a deficient number, since it is larger than the sum of its proper divisors (1243010375867).

12221102002021 is a wasteful number, since it uses less digits than its factorization.

12221102002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11000091923.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12221102002021 its reverse (12020020112221), we get a palindrome (24241122114242).

It can be divided in two parts, 1222110200 and 2021, that added together give a palindrome (1222112221).

The spelling of 12221102002021 in words is "twelve trillion, two hundred twenty-one billion, one hundred two million, two thousand, twenty-one".