122209530 has 32 divisors (see below), whose sum is σ = 294836544. Its totient is φ = 32418816.

The previous prime is 122209513. The next prime is 122209537. The reversal of 122209530 is 35902221.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122209530.

It is not an unprimeable number, because it can be changed into a prime (122209537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4764 + ... + 16343.

It is an arithmetic number, because the mean of its divisors is an integer number (9213642).

Almost surely, 2^122209530 is an apocalyptic number.

122209530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122209530 is an abundant number, since it is smaller than the sum of its proper divisors (172627014).

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

122209530 is a wasteful number, since it uses less digits than its factorization.

122209530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21310.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 122209530 is about 11054.8419255998. The cubic root of 122209530 is about 496.2513386467.

The spelling of 122209530 in words is "one hundred twenty-two million, two hundred nine thousand, five hundred thirty".