2212020 has 36 divisors (see below), whose sum is σ = 6710340. Its totient is φ = 589824.

The previous prime is 2212009. The next prime is 2212039. The reversal of 2212020 is 202122.

It can be written as a sum of positive squares in 2 ways, for example, as 1313316 + 898704 = 1146^2 + 948^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2211993 and 2212011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5965 + ... + 6324.

2^2212020 is an apocalyptic number.

2212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212020 is an abundant number, since it is smaller than the sum of its proper divisors (4498320).

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

2212020 is a wasteful number, since it uses less digits than its factorization.

2212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12304 (or 12299 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 2212020 is about 1487.2861190773. The cubic root of 2212020 is about 130.2955798986.

Adding to 2212020 its reverse (202122), we get a palindrome (2414142).

The spelling of 2212020 in words is "two million, two hundred twelve thousand, twenty".