122099436 has 18 divisors (see below), whose sum is σ = 308640332. Its totient is φ = 40699800.

The previous prime is 122099381. The next prime is 122099437. The reversal of 122099436 is 634990221.

122099436 is a `hidden beast` number, since 12 + 209 + 9 + 436 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3391651 = 122099436 / (1 + 2 + 2 + 0 + 9 + 9 + 4 + 3 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 122099436.

It is not an unprimeable number, because it can be changed into a prime (122099437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1695790 + ... + 1695861.

Almost surely, 2^122099436 is an apocalyptic number.

It is an amenable number.

122099436 is an abundant number, since it is smaller than the sum of its proper divisors (186540896).

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

122099436 is a wasteful number, since it uses less digits than its factorization.

122099436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391661 (or 3391656 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 122099436 is about 11049.8613565963. The cubic root of 122099436 is about 496.1022757787.

The spelling of 122099436 in words is "one hundred twenty-two million, ninety-nine thousand, four hundred thirty-six".