122291806 has 16 divisors (see below), whose sum is σ = 225769824. Its totient is φ = 48379104.

The previous prime is 122291803. The next prime is 122291821. The reversal of 122291806 is 608192221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122291803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335785 + ... + 336148.

It is an arithmetic number, because the mean of its divisors is an integer number (14110614).

Almost surely, 2^122291806 is an apocalyptic number.

122291806 is a deficient number, since it is larger than the sum of its proper divisors (103478018).

122291806 is a wasteful number, since it uses less digits than its factorization.

122291806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671955.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 122291806 is about 11058.5625648183. The cubic root of 122291806 is about 496.3626786158.

The spelling of 122291806 in words is "one hundred twenty-two million, two hundred ninety-one thousand, eight hundred six".