2290122020 has 24 divisors (see below), whose sum is σ = 5092154424. Its totient is φ = 862163456.

The previous prime is 2290122017. The next prime is 2290122059. The reversal of 2290122020 is 202210922.

It can be written as a sum of positive squares in 4 ways, for example, as 596141056 + 1693980964 = 24416^2 + 41158^2 .

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 = 2290121983 and 2290122001.

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 7 ways as a sum of consecutive naturals, for example, 3367487 + ... + 3368166.

It is an arithmetic number, because the mean of its divisors is an integer number (212173101).

Almost surely, 2^2290122020 is an apocalyptic number.

2290122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2290122020 is an abundant number, since it is smaller than the sum of its proper divisors (2802032404).

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

2290122020 is a wasteful number, since it uses less digits than its factorization.

2290122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6735679 (or 6735677 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2290122020 is about 47855.2193600656. The cubic root of 2290122020 is about 1318.1137007456.

Adding to 2290122020 its reverse (202210922), we get a palindrome (2492332942).

The spelling of 2290122020 in words is "two billion, two hundred ninety million, one hundred twenty-two thousand, twenty".