22221123100201 has 4 divisors (see below), whose sum is σ = 22221233640900. Its totient is φ = 22221012559504.

The previous prime is 22221123100181. The next prime is 22221123100283. The reversal of 22221123100201 is 10200132112222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21495500232976 + 725622867225 = 4636324^2 + 851835^2 .

It is a cyclic number.

It is not a de Polignac number, because 22221123100201 - 2⁴³ = 13425030077993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22221123100291) 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 3 ways as a sum of consecutive naturals, for example, 54968266 + ... + 55371043.

It is an arithmetic number, because the mean of its divisors is an integer number (5555308410225).

Almost surely, 2^{22221123100201} is an apocalyptic number.

It is an amenable number.

22221123100201 is a deficient number, since it is larger than the sum of its proper divisors (110540699).

22221123100201 is a wasteful number, since it uses less digits than its factorization.

22221123100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110540698.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 22221123100201 its reverse (10200132112222), we get a palindrome (32421255212423).

The spelling of 22221123100201 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred twenty-three million, one hundred thousand, two hundred one".