122289750 has 224 divisors, whose sum is σ = 380573856. Its totient is φ = 29160000.

The previous prime is 122289749. The next prime is 122289751. The reversal of 122289750 is 57982221.

It is an interprime number because it is at equal distance from previous prime (122289749) and next prime (122289751).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122289751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 2004720 + ... + 2004780.

Almost surely, 2^122289750 is an apocalyptic number.

122289750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122289750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190286928).

122289750 is an abundant number, since it is smaller than the sum of its proper divisors (258284106).

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

122289750 is an equidigital number, since it uses as much as digits as its factorization.

122289750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 122289750 is about 11058.4696047871. The cubic root of 122289750 is about 496.3598969430.

The spelling of 122289750 in words is "one hundred twenty-two million, two hundred eighty-nine thousand, seven hundred fifty".