22020011001 has 16 divisors (see below), whose sum is σ = 32624867520. Its totient is φ = 14678824320.

The previous prime is 22020010973. The next prime is 22020011017. The reversal of 22020011001 is 10011002022.

It is not a de Polignac number, because 22020011001 - 2¹¹ = 22020008953 is a prime.

It is a super-2 number, since 2×22020011001² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22020011401) 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, 423721 + ... + 472841.

It is an arithmetic number, because the mean of its divisors is an integer number (2039054220).

Almost surely, 2^22020011001 is an apocalyptic number.

It is an amenable number.

22020011001 is a deficient number, since it is larger than the sum of its proper divisors (10604856519).

22020011001 is a wasteful number, since it uses less digits than its factorization.

22020011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65733 (or 65727 counting only the distinct ones).

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

Adding to 22020011001 its reverse (10011002022), we get a palindrome (32031013023).

The spelling of 22020011001 in words is "twenty-two billion, twenty million, eleven thousand, one".