122001120 has 192 divisors, whose sum is σ = 441262080. Its totient is φ = 31449600.

The previous prime is 122001107. The next prime is 122001133. The reversal of 122001120 is 21100221.

It is an interprime number because it is at equal distance from previous prime (122001107) and next prime (122001133).

It is a super-4 number, since 4×122001120⁴ (a number of 33 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 133465 + ... + 134375.

It is an arithmetic number, because the mean of its divisors is an integer number (2298240).

Almost surely, 2^122001120 is an apocalyptic number.

122001120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122001120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220631040).

122001120 is an abundant number, since it is smaller than the sum of its proper divisors (319260960).

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

122001120 is a wasteful number, since it uses less digits than its factorization.

122001120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966 (or 952 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 122001120 is about 11045.4117170887. The cubic root of 122001120 is about 495.9690840945.

Adding to 122001120 its reverse (21100221), we get a palindrome (143101341).

The spelling of 122001120 in words is "one hundred twenty-two million, one thousand, one hundred twenty".