22000211001 has 6 divisors (see below), whose sum is σ = 31778082570. Its totient is φ = 14666807328.

The previous prime is 22000210933. The next prime is 22000211021. The reversal of 22000211001 is 10011200022.

It can be written as a sum of positive squares in only one way, i.e., 21992593401 + 7617600 = 148299^2 + 2760^2 .

It is not a de Polignac number, because 22000211001 - 2¹⁰ = 22000209977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 2444467889 = 22000211001 / (2 + 2 + 0 + 0 + 0 + 2 + 1 + 1 + 0 + 0 + 1).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22000211021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1222233936 + ... + 1222233953.

It is an arithmetic number, because the mean of its divisors is an integer number (5296347095).

Almost surely, 2^22000211001 is an apocalyptic number.

It is an amenable number.

22000211001 is a deficient number, since it is larger than the sum of its proper divisors (9777871569).

22000211001 is a wasteful number, since it uses less digits than its factorization.

22000211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444467895 (or 2444467892 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 22000211001 its reverse (10011200022), we get a palindrome (32011411023).

It can be divided in two parts, 2200021 and 1001, that added together give a palindrome (2201022).

The spelling of 22000211001 in words is "twenty-two billion, two hundred eleven thousand, one".