122109019 has 8 divisors (see below), whose sum is σ = 124411392. Its totient is φ = 119826600.

The previous prime is 122109017. The next prime is 122109023. The reversal of 122109019 is 910901221.

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

It is a cyclic number.

It is not a de Polignac number, because 122109019 - 2¹ = 122109017 is a prime.

It is a super-2 number, since 2×122109019² = 29821225042284722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122108984 and 122109002.

It is not an unprimeable number, because it can be changed into a prime (122109017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7662 + ... + 17404.

It is an arithmetic number, because the mean of its divisors is an integer number (15551424).

Almost surely, 2^122109019 is an apocalyptic number.

122109019 is a deficient number, since it is larger than the sum of its proper divisors (2302373).

122109019 is an equidigital number, since it uses as much as digits as its factorization.

122109019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9977.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 122109019 is about 11050.2949734385. The cubic root of 122109019 is about 496.1152543365.

The spelling of 122109019 in words is "one hundred twenty-two million, one hundred nine thousand, nineteen".