12122620 has 12 divisors (see below), whose sum is σ = 25457544. Its totient is φ = 4849040.

The previous prime is 12122597. The next prime is 12122623. The reversal of 12122620 is 2622121.

It is a junction number, because it is equal to n+sod(n) for n = 12122594 and 12122603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122623) 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, 303046 + ... + 303085.

It is an arithmetic number, because the mean of its divisors is an integer number (2121462).

Almost surely, 2^12122620 is an apocalyptic number.

12122620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122620 is an abundant number, since it is smaller than the sum of its proper divisors (13334924).

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

12122620 is a wasteful number, since it uses less digits than its factorization.

12122620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606140 (or 606138 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 12122620 is about 3481.7553044406. The cubic root of 12122620 is about 229.7200121654.

Adding to 12122620 its reverse (2622121), we get a palindrome (14744741).

The spelling of 12122620 in words is "twelve million, one hundred twenty-two thousand, six hundred twenty".