12206781371 has 8 divisors (see below), whose sum is σ = 13341757824. Its totient is φ = 11118130560.

The previous prime is 12206781331. The next prime is 12206781397. The reversal of 12206781371 is 17318760221.

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

It is not a de Polignac number, because 12206781371 - 2¹⁰ = 12206780347 is a prime.

It is a super-2 number, since 2×12206781371² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12206781331) 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, 11580860 + ... + 11581913.

It is an arithmetic number, because the mean of its divisors is an integer number (1667719728).

Almost surely, 2^12206781371 is an apocalyptic number.

12206781371 is a deficient number, since it is larger than the sum of its proper divisors (1134976453).

12206781371 is a wasteful number, since it uses less digits than its factorization.

12206781371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23162821.

The product of its (nonzero) digits is 28224, while the sum is 38.

The spelling of 12206781371 in words is "twelve billion, two hundred six million, seven hundred eighty-one thousand, three hundred seventy-one".