22020111021 has 8 divisors (see below), whose sum is σ = 29418988000. Its totient is φ = 14650654032.

The previous prime is 22020110993. The next prime is 22020111023. The reversal of 22020111021 is 12011102022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22020111021 - 2¹⁰ = 22020109997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22020110988 and 22020111006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020111023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7353250 + ... + 7356243.

It is an arithmetic number, because the mean of its divisors is an integer number (3677373500).

Almost surely, 2^22020111021 is an apocalyptic number.

It is an amenable number.

22020111021 is a deficient number, since it is larger than the sum of its proper divisors (7398876979).

22020111021 is a wasteful number, since it uses less digits than its factorization.

22020111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14709995.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22020111021 its reverse (12011102022), we get a palindrome (34031213043).

The spelling of 22020111021 in words is "twenty-two billion, twenty million, one hundred eleven thousand, twenty-one".