122209843 has 16 divisors (see below), whose sum is σ = 151767040. Its totient is φ = 96033600.

The previous prime is 122209831. The next prime is 122209877. The reversal of 122209843 is 348902221.

It is a de Polignac number, because none of the positive numbers 2^k-122209843 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122209883) 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 15 ways as a sum of consecutive naturals, for example, 10698 + ... + 18943.

It is an arithmetic number, because the mean of its divisors is an integer number (9485440).

Almost surely, 2^122209843 is an apocalyptic number.

122209843 is a deficient number, since it is larger than the sum of its proper divisors (29557197).

122209843 is a wasteful number, since it uses less digits than its factorization.

122209843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29698.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 122209843 is about 11054.8560822835. The cubic root of 122209843 is about 496.2517623085.

The spelling of 122209843 in words is "one hundred twenty-two million, two hundred nine thousand, eight hundred forty-three".