20120222111001 has 4 divisors (see below), whose sum is σ = 26826962814672. Its totient is φ = 13413481407332.

The previous prime is 20120222110997. The next prime is 20120222111009. The reversal of 20120222111001 is 10011122202102.

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 20120222111001 - 2² = 20120222110997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20120222111009) 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, 3353370351831 + ... + 3353370351836.

It is an arithmetic number, because the mean of its divisors is an integer number (6706740703668).

Almost surely, 2^{20120222111001} is an apocalyptic number.

It is an amenable number.

20120222111001 is a deficient number, since it is larger than the sum of its proper divisors (6706740703671).

20120222111001 is an equidigital number, since it uses as much as digits as its factorization.

20120222111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6706740703670.

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

Adding to 20120222111001 its reverse (10011122202102), we get a palindrome (30131344313103).

The spelling of 20120222111001 in words is "twenty trillion, one hundred twenty billion, two hundred twenty-two million, one hundred eleven thousand, one".