12261187229 has 8 divisors (see below), whose sum is σ = 12355716288. Its totient is φ = 12166731360.

The previous prime is 12261187223. The next prime is 12261187249. The reversal of 12261187229 is 92278116221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12261187229 - 2¹² = 12261183133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12261187223) 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, 345734 + ... + 379544.

It is an arithmetic number, because the mean of its divisors is an integer number (1544464536).

Almost surely, 2^12261187229 is an apocalyptic number.

It is an amenable number.

12261187229 is a deficient number, since it is larger than the sum of its proper divisors (94529059).

12261187229 is a wasteful number, since it uses less digits than its factorization.

12261187229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36595.

The product of its digits is 48384, while the sum is 41.

The spelling of 12261187229 in words is "twelve billion, two hundred sixty-one million, one hundred eighty-seven thousand, two hundred twenty-nine".