22022221122 has 24 divisors (see below), whose sum is σ = 52052523120. Its totient is φ = 6673400280.

The previous prime is 22022221021. The next prime is 22022221139. The reversal of 22022221122 is 22112222022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22022221095 and 22022221104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55611472 + ... + 55611867.

It is an arithmetic number, because the mean of its divisors is an integer number (2168855130).

Almost surely, 2^22022221122 is an apocalyptic number.

22022221122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22022221122 is an abundant number, since it is smaller than the sum of its proper divisors (30030301998).

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

22022221122 is a wasteful number, since it uses less digits than its factorization.

22022221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111223358 (or 111223355 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22022221122 its reverse (22112222022), we get a palindrome (44134443144).

The spelling of 22022221122 in words is "twenty-two billion, twenty-two million, two hundred twenty-one thousand, one hundred twenty-two".