20112222201 has 8 divisors (see below), whose sum is σ = 27541061184. Its totient is φ = 13045765680.

The previous prime is 20112222199. The next prime is 20112222211. The reversal of 20112222201 is 10222221102.

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

It is not a de Polignac number, because 20112222201 - 2¹ = 20112222199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20112222211) 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, 90595485 + ... + 90595706.

It is an arithmetic number, because the mean of its divisors is an integer number (3442632648).

Almost surely, 2^20112222201 is an apocalyptic number.

It is an amenable number.

20112222201 is a deficient number, since it is larger than the sum of its proper divisors (7428838983).

20112222201 is a wasteful number, since it uses less digits than its factorization.

20112222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181191231.

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

Adding to 20112222201 its reverse (10222221102), we get a palindrome (30334443303).

The spelling of 20112222201 in words is "twenty billion, one hundred twelve million, two hundred twenty-two thousand, two hundred one".