122001852 has 96 divisors (see below), whose sum is σ = 335462400. Its totient is φ = 33792192.

The previous prime is 122001851. The next prime is 122001853. The reversal of 122001852 is 258100221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (122001851) and next prime (122001853).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 510349 + ... + 510587.

It is an arithmetic number, because the mean of its divisors is an integer number (3494400).

Almost surely, 2^122001852 is an apocalyptic number.

122001852 is a gapful number since it is divisible by the number (12) 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 122001852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167731200).

122001852 is an abundant number, since it is smaller than the sum of its proper divisors (213460548).

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

122001852 is a wasteful number, since it uses less digits than its factorization.

122001852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 122001852 is about 11045.4448529699. Note that the first 3 decimals coincide. The cubic root of 122001852 is about 495.9700760216.

The spelling of 122001852 in words is "one hundred twenty-two million, one thousand, eight hundred fifty-two".