22220211021 has 8 divisors (see below), whose sum is σ = 29659473024. Its totient is φ = 14797211520.

The previous prime is 22220211007. The next prime is 22220211037. The reversal of 22220211021 is 12011202222.

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

It is not a de Polignac number, because 22220211021 - 2¹⁷ = 22220079949 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220211001) 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 7 ways as a sum of consecutive naturals, for example, 4062436 + ... + 4067901.

It is an arithmetic number, because the mean of its divisors is an integer number (3707434128).

Almost surely, 2^22220211021 is an apocalyptic number.

It is an amenable number.

22220211021 is a deficient number, since it is larger than the sum of its proper divisors (7439262003).

22220211021 is an equidigital number, since it uses as much as digits as its factorization.

22220211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8131251.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22220211021 its reverse (12011202222), we get a palindrome (34231413243).

The spelling of 22220211021 in words is "twenty-two billion, two hundred twenty million, two hundred eleven thousand, twenty-one".