12212321757 has 16 divisors (see below), whose sum is σ = 16409923200. Its totient is φ = 8078357952.

The previous prime is 12212321717. The next prime is 12212321761. The reversal of 12212321757 is 75712321221.

It is not a de Polignac number, because 12212321757 - 2¹⁴ = 12212305373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212321717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192744 + ... + 248142.

It is an arithmetic number, because the mean of its divisors is an integer number (1025620200).

Almost surely, 2^12212321757 is an apocalyptic number.

It is an amenable number.

12212321757 is a deficient number, since it is larger than the sum of its proper divisors (4197601443).

12212321757 is a wasteful number, since it uses less digits than its factorization.

12212321757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55972.

The product of its digits is 11760, while the sum is 33.

Adding to 12212321757 its reverse (75712321221), we get a palindrome (87924642978).

The spelling of 12212321757 in words is "twelve billion, two hundred twelve million, three hundred twenty-one thousand, seven hundred fifty-seven".