1122022420 has 12 divisors (see below), whose sum is σ = 2356247124. Its totient is φ = 448808960.

The previous prime is 1122022417. The next prime is 1122022453. The reversal of 1122022420 is 242202211.

It can be written as a sum of positive squares in 2 ways, for example, as 530657296 + 591365124 = 23036^2 + 24318^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1122022394 and 1122022403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28050541 + ... + 28050580.

It is an arithmetic number, because the mean of its divisors is an integer number (196353927).

Almost surely, 2^1122022420 is an apocalyptic number.

1122022420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122022420 is an abundant number, since it is smaller than the sum of its proper divisors (1234224704).

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

1122022420 is a wasteful number, since it uses less digits than its factorization.

1122022420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56101130 (or 56101128 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1122022420 is about 33496.6031113604. The cubic root of 1122022420 is about 1039.1235280695.

Adding to 1122022420 its reverse (242202211), we get a palindrome (1364224631).

The spelling of 1122022420 in words is "one billion, one hundred twenty-two million, twenty-two thousand, four hundred twenty".