12722020 has 24 divisors (see below), whose sum is σ = 28123200. Its totient is φ = 4820832.

The previous prime is 12722011. The next prime is 12722041. The reversal of 12722020 is 2022721.

It is a junction number, because it is equal to n+sod(n) for n = 12721985 and 12722003.

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 7 ways as a sum of consecutive naturals, for example, 16360 + ... + 17119.

It is an arithmetic number, because the mean of its divisors is an integer number (1171800).

Almost surely, 2^12722020 is an apocalyptic number.

12722020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12722020 is an abundant number, since it is smaller than the sum of its proper divisors (15401180).

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

12722020 is a wasteful number, since it uses less digits than its factorization.

12722020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33507 (or 33505 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 12722020 is about 3566.7940787211. The cubic root of 12722020 is about 233.4454200710.

Adding to 12722020 its reverse (2022721), we get a palindrome (14744741).

The spelling of 12722020 in words is "twelve million, seven hundred twenty-two thousand, twenty".