22021020222 has 16 divisors (see below), whose sum is σ = 44175101952. Its totient is φ = 7318163160.

The previous prime is 22021020211. The next prime is 22021020223. The reversal of 22021020222 is 22202012022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021020223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5542078 + ... + 5546049.

It is an arithmetic number, because the mean of its divisors is an integer number (2760943872).

Almost surely, 2^22021020222 is an apocalyptic number.

22021020222 is an abundant number, since it is smaller than the sum of its proper divisors (22154081730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22021020222 is a wasteful number, since it uses less digits than its factorization.

22021020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11088463.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 22021020222 its reverse (22202012022), we get a palindrome (44223032244).

The spelling of 22021020222 in words is "twenty-two billion, twenty-one million, twenty thousand, two hundred twenty-two".