1122424220 has 12 divisors (see below), whose sum is σ = 2357090904. Its totient is φ = 448969680.

The previous prime is 1122424187. The next prime is 1122424229. The reversal of 1122424220 is 224242211.

It is a super-2 number, since 2×1122424220² = 2519672259285216800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 56121211 = 1122424220 / (1 + 1 + 2 + 2 + 4 + 2 + 4 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 1122424192 and 1122424201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122424229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28060586 + ... + 28060625.

It is an arithmetic number, because the mean of its divisors is an integer number (196424242).

Almost surely, 2^1122424220 is an apocalyptic number.

1122424220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122424220 is an abundant number, since it is smaller than the sum of its proper divisors (1234666684).

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

1122424220 is a wasteful number, since it uses less digits than its factorization.

1122424220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56121220 (or 56121218 counting only the distinct ones).

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

The square root of 1122424220 is about 33502.6001975966. The cubic root of 1122424220 is about 1039.2475511423.

Adding to 1122424220 its reverse (224242211), we get a palindrome (1346666431).

It can be divided in two parts, 1 and 122424220, that added together give a palindrome (122424221).

The spelling of 1122424220 in words is "one billion, one hundred twenty-two million, four hundred twenty-four thousand, two hundred twenty".