20112222100001 has 32 divisors (see below), whose sum is σ = 20860506401280. Its totient is φ = 19380649026816.

The previous prime is 20112222099989. The next prime is 20112222100043. The reversal of 20112222100001 is 10000122221102.

It is a cyclic number.

It is not a de Polignac number, because 20112222100001 - 2¹⁴ = 20112222083617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112222100501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 696705770 + ... + 696734636.

It is an arithmetic number, because the mean of its divisors is an integer number (651890825040).

Almost surely, 2^{20112222100001} is an apocalyptic number.

It is an amenable number.

20112222100001 is a deficient number, since it is larger than the sum of its proper divisors (748284301279).

20112222100001 is a wasteful number, since it uses less digits than its factorization.

20112222100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29853.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20112222100001 its reverse (10000122221102), we get a palindrome (30112344321103).

The spelling of 20112222100001 in words is "twenty trillion, one hundred twelve billion, two hundred twenty-two million, one hundred thousand, one".