12216201032761 has 16 divisors (see below), whose sum is σ = 13560611815296. Its totient is φ = 10911178080000.

The previous prime is 12216201032753. The next prime is 12216201032821. The reversal of 12216201032761 is 16723010261221.

It is not a de Polignac number, because 12216201032761 - 2³ = 12216201032753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12216201032701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9741405 + ... + 10923706.

It is an arithmetic number, because the mean of its divisors is an integer number (847538238456).

Almost surely, 2^{12216201032761} is an apocalyptic number.

12216201032761 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12216201032761 is a deficient number, since it is larger than the sum of its proper divisors (1344410782535).

12216201032761 is a wasteful number, since it uses less digits than its factorization.

12216201032761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20666064.

The product of its (nonzero) digits is 12096, while the sum is 34.

Adding to 12216201032761 its reverse (16723010261221), we get a palindrome (28939211293982).

The spelling of 12216201032761 in words is "twelve trillion, two hundred sixteen billion, two hundred one million, thirty-two thousand, seven hundred sixty-one".