22012001210221 has 8 divisors (see below), whose sum is σ = 24013489284000. Its totient is φ = 20010579312240.

The previous prime is 22012001210167. The next prime is 22012001210237. The reversal of 22012001210221 is 12201210021022.

It is a happy number.

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

It is not a de Polignac number, because 22012001210221 - 2¹¹ = 22012001208173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22012001210195 and 22012001210204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012001213221) 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 7 ways as a sum of consecutive naturals, for example, 15847171 + ... + 17180128.

It is an arithmetic number, because the mean of its divisors is an integer number (3001686160500).

Almost surely, 2^{22012001210221} is an apocalyptic number.

It is an amenable number.

22012001210221 is a deficient number, since it is larger than the sum of its proper divisors (2001488073779).

22012001210221 is a wasteful number, since it uses less digits than its factorization.

22012001210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33087899.

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

Adding to 22012001210221 its reverse (12201210021022), we get a palindrome (34213211231243).

It can be divided in two parts, 22012001 and 210221, that added together give a palindrome (22222222).

The spelling of 22012001210221 in words is "twenty-two trillion, twelve billion, one million, two hundred ten thousand, two hundred twenty-one".