22021111201 has 4 divisors (see below), whose sum is σ = 22042936900. Its totient is φ = 21999285504.

The previous prime is 22021111183. The next prime is 22021111213. The reversal of 22021111201 is 10211112022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14574284176 + 7446827025 = 120724^2 + 86295^2 .

It is a cyclic number.

It is not a de Polignac number, because 22021111201 - 2¹³ = 22021103009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22021111241) 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, 10911336 + ... + 10913353.

It is an arithmetic number, because the mean of its divisors is an integer number (5510734225).

Almost surely, 2^22021111201 is an apocalyptic number.

It is an amenable number.

22021111201 is a deficient number, since it is larger than the sum of its proper divisors (21825699).

22021111201 is a wasteful number, since it uses less digits than its factorization.

22021111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21825698.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22021111201 its reverse (10211112022), we get a palindrome (32232223223).

The spelling of 22021111201 in words is "twenty-two billion, twenty-one million, one hundred eleven thousand, two hundred one".