22112020001 has 4 divisors (see below), whose sum is σ = 22651337604. Its totient is φ = 21572702400.

The previous prime is 22112019997. The next prime is 22112020019. The reversal of 22112020001 is 10002021122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10002021122 = 2 ⋅5001010561.

It can be written as a sum of positive squares in 2 ways, for example, as 2181357025 + 19930662976 = 46705^2 + 141176^2 .

It is a cyclic number.

It is not a de Polignac number, because 22112020001 - 2² = 22112019997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22112020061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269658740 + ... + 269658821.

It is an arithmetic number, because the mean of its divisors is an integer number (5662834401).

Almost surely, 2^22112020001 is an apocalyptic number.

It is an amenable number.

22112020001 is a deficient number, since it is larger than the sum of its proper divisors (539317603).

22112020001 is an equidigital number, since it uses as much as digits as its factorization.

22112020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539317602.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22112020001 its reverse (10002021122), we get a palindrome (32114041123).

The spelling of 22112020001 in words is "twenty-two billion, one hundred twelve million, twenty thousand, one".