22121201120201 has 4 divisors (see below), whose sum is σ = 22139837348112. Its totient is φ = 22102564892292.

The previous prime is 22121201120191. The next prime is 22121201120243. The reversal of 22121201120201 is 10202110212122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22121201120201 - 2¹⁰ = 22121201119177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22121201120201.

It is not an unprimeable number, because it can be changed into a prime (22121201120251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9318112175 + ... + 9318114548.

It is an arithmetic number, because the mean of its divisors is an integer number (5534959337028).

Almost surely, 2^{22121201120201} is an apocalyptic number.

It is an amenable number.

22121201120201 is a deficient number, since it is larger than the sum of its proper divisors (18636227911).

22121201120201 is a wasteful number, since it uses less digits than its factorization.

22121201120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18636227910.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22121201120201 its reverse (10202110212122), we get a palindrome (32323311332323).

The spelling of 22121201120201 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred one million, one hundred twenty thousand, two hundred one".