1122020 has 12 divisors (see below), whose sum is σ = 2356284. Its totient is φ = 448800.

The previous prime is 1122001. The next prime is 1122029. The reversal of 1122020 is 202211.

It can be written as a sum of positive squares in 2 ways, for example, as 565504 + 556516 = 752^2 + 746^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1121989 and 1122007.

It is not an unprimeable number, because it can be changed into a prime (1122029) 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, 28031 + ... + 28070.

It is an arithmetic number, because the mean of its divisors is an integer number (196357).

2^1122020 is an apocalyptic number.

1122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122020 is an abundant number, since it is smaller than the sum of its proper divisors (1234264).

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

1122020 is a wasteful number, since it uses less digits than its factorization.

1122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56110 (or 56108 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1122020 is about 1059.2544547936. The cubic root of 1122020 is about 103.9122781002.

Adding to 1122020 its reverse (202211), we get a palindrome (1324231).

The spelling of 1122020 in words is "one million, one hundred twenty-two thousand, twenty".