12206851 has 2 divisors, whose sum is σ = 12206852. Its totient is φ = 12206850.

The previous prime is 12206849. The next prime is 12206861. The reversal of 12206851 is 15860221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12206851 - 2¹ = 12206849 is a prime.

It is a super-2 number, since 2×12206851² = 298014422672402, which contains 22 as substring.

Together with 12206849, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12206861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6103425 + 6103426.

It is an arithmetic number, because the mean of its divisors is an integer number (6103426).

Almost surely, 2^12206851 is an apocalyptic number.

12206851 is a deficient number, since it is larger than the sum of its proper divisors (1).

12206851 is an equidigital number, since it uses as much as digits as its factorization.

12206851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 12206851 is about 3493.8304194680. The cubic root of 12206851 is about 230.2508353531.

The spelling of 12206851 in words is "twelve million, two hundred six thousand, eight hundred fifty-one".