20112221120001 has 16 divisors (see below), whose sum is σ = 26997819030528. Its totient is φ = 13317411186000.

The previous prime is 20112221119997. The next prime is 20112221120009. The reversal of 20112221120001 is 10002112221102.

It is not a de Polignac number, because 20112221120001 - 2² = 20112221119997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20112221120009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118251 + ... + 6343376.

It is an arithmetic number, because the mean of its divisors is an integer number (1687363689408).

Almost surely, 2^{20112221120001} is an apocalyptic number.

It is an amenable number.

20112221120001 is a deficient number, since it is larger than the sum of its proper divisors (6885597910527).

20112221120001 is a wasteful number, since it uses less digits than its factorization.

20112221120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6468652.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20112221120001 its reverse (10002112221102), we get a palindrome (30114333341103).

The spelling of 20112221120001 in words is "twenty trillion, one hundred twelve billion, two hundred twenty-one million, one hundred twenty thousand, one".