22001200201221 has 8 divisors (see below), whose sum is σ = 29463033749280. Its totient is φ = 14603416726992.

The previous prime is 22001200201163. The next prime is 22001200201229. The reversal of 22001200201221 is 12210200210022.

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

It is not a de Polignac number, because 22001200201221 - 2⁶ = 22001200201157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22001200201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001200201229) 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, 16012517655 + ... + 16012519028.

It is an arithmetic number, because the mean of its divisors is an integer number (3682879218660).

Almost surely, 2^{22001200201221} is an apocalyptic number.

It is an amenable number.

22001200201221 is a deficient number, since it is larger than the sum of its proper divisors (7461833548059).

22001200201221 is a wasteful number, since it uses less digits than its factorization.

22001200201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32025036915.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22001200201221 its reverse (12210200210022), we get a palindrome (34211400411243).

The spelling of 22001200201221 in words is "twenty-two trillion, one billion, two hundred million, two hundred one thousand, two hundred twenty-one".