1122404020220 has 192 divisors, whose sum is σ = 2747499955200. Its totient is φ = 377244241920.

The previous prime is 1122404020183. The next prime is 1122404020223. The reversal of 1122404020220 is 220204042211.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1122404020192 and 1122404020201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122404020223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 785446466 + ... + 785447894.

It is an arithmetic number, because the mean of its divisors is an integer number (14309895600).

Almost surely, 2^{1122404020220} is an apocalyptic number.

1122404020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122404020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1373749977600).

1122404020220 is an abundant number, since it is smaller than the sum of its proper divisors (1625095934980).

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

1122404020220 is a wasteful number, since it uses less digits than its factorization.

1122404020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068 (or 2066 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 1122404020220 its reverse (220204042211), we get a palindrome (1342608062431).

The spelling of 1122404020220 in words is "one trillion, one hundred twenty-two billion, four hundred four million, twenty thousand, two hundred twenty".