20612120 has 32 divisors (see below), whose sum is σ = 46584720. Its totient is φ = 8208000.

The previous prime is 20612101. The next prime is 20612129. The reversal of 20612120 is 2121602.

It is a junction number, because it is equal to n+sod(n) for n = 20612095 and 20612104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20612129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9014 + ... + 11066.

Almost surely, 2^20612120 is an apocalyptic number.

20612120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20612120 is an abundant number, since it is smaller than the sum of its proper divisors (25972600).

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

20612120 is a wasteful number, since it uses less digits than its factorization.

20612120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315 (or 2311 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 20612120 is about 4540.0572683613. The cubic root of 20612120 is about 274.1832294245.

Adding to 20612120 its reverse (2121602), we get a palindrome (22733722).

The spelling of 20612120 in words is "twenty million, six hundred twelve thousand, one hundred twenty".