122257866 has 8 divisors (see below), whose sum is σ = 244515744. Its totient is φ = 40752620.

The previous prime is 122257843. The next prime is 122257873. The reversal of 122257866 is 668752221.

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

122257866 is an admirable number.

It is a plaindrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10188150 + ... + 10188161.

It is an arithmetic number, because the mean of its divisors is an integer number (30564468).

Almost surely, 2^122257866 is an apocalyptic number.

122257866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122257866 is a wasteful number, since it uses less digits than its factorization.

122257866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20376316.

The product of its digits is 80640, while the sum is 39.

The square root of 122257866 is about 11057.0279008421. The cubic root of 122257866 is about 496.3167553754.

The spelling of 122257866 in words is "one hundred twenty-two million, two hundred fifty-seven thousand, eight hundred sixty-six".