22404422111220 has 72 divisors (see below), whose sum is σ = 68074684573896. Its totient is φ = 5964437471232.

The previous prime is 22404422111177. The next prime is 22404422111237. The reversal of 22404422111220 is 2211122440422.

22404422111220 is a `hidden beast` number, since 2 + 2 + 4 + 0 + 4 + 422 + 1 + 11 + 220 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 516958124004 + 21887463987216 = 718998^2 + 4678404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104841837 + ... + 105055316.

It is an arithmetic number, because the mean of its divisors is an integer number (945481730193).

Almost surely, 2^{22404422111220} is an apocalyptic number.

22404422111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22404422111220 is an abundant number, since it is smaller than the sum of its proper divisors (45670262462676).

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

22404422111220 is a wasteful number, since it uses less digits than its factorization.

22404422111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209897761 (or 209897756 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 22404422111220 its reverse (2211122440422), we get a palindrome (24615544551642).

The spelling of 22404422111220 in words is "twenty-two trillion, four hundred four billion, four hundred twenty-two million, one hundred eleven thousand, two hundred twenty".