12212760 has 192 divisors, whose sum is σ = 44651520. Its totient is φ = 2661120.

The previous prime is 12212743. The next prime is 12212771. The reversal of 12212760 is 6721221.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 47 ways as a sum of consecutive naturals, for example, 182247 + ... + 182313.

It is an arithmetic number, because the mean of its divisors is an integer number (232560).

Almost surely, 2^12212760 is an apocalyptic number.

12212760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12212760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22325760).

12212760 is an abundant number, since it is smaller than the sum of its proper divisors (32438760).

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

12212760 is a wasteful number, since it uses less digits than its factorization.

12212760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 12212760 is about 3494.6759506426. The cubic root of 12212760 is about 230.2879820535.

Adding to 12212760 its reverse (6721221), we get a palindrome (18933981).

The spelling of 12212760 in words is "twelve million, two hundred twelve thousand, seven hundred sixty".