22001220201 has 16 divisors (see below), whose sum is σ = 30621704768. Its totient is φ = 14037105600.

The previous prime is 22001220187. The next prime is 22001220217. The reversal of 22001220201 is 10202210022.

It is not a de Polignac number, because 22001220201 - 2²⁶ = 21934111337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22001220001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1617895 + ... + 1631436.

It is an arithmetic number, because the mean of its divisors is an integer number (1913856548).

Almost surely, 2^22001220201 is an apocalyptic number.

It is an amenable number.

22001220201 is a deficient number, since it is larger than the sum of its proper divisors (8620484567).

22001220201 is a wasteful number, since it uses less digits than its factorization.

22001220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3249432.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22001220201 its reverse (10202210022), we get a palindrome (32203430223).

The spelling of 22001220201 in words is "twenty-two billion, one million, two hundred twenty thousand, two hundred one".