122142852 has 72 divisors (see below), whose sum is σ = 343266560. Its totient is φ = 36365760.

The previous prime is 122142851. The next prime is 122142863. The reversal of 122142852 is 258241221.

It is not an unprimeable number, because it can be changed into a prime (122142851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10299 + ... + 18717.

Almost surely, 2^122142852 is an apocalyptic number.

122142852 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 122142852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171633280).

122142852 is an abundant number, since it is smaller than the sum of its proper divisors (221123708).

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

122142852 is a wasteful number, since it uses less digits than its factorization.

122142852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8473 (or 8468 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 122142852 is about 11051.8257315251. The cubic root of 122142852 is about 496.1610700006.

The spelling of 122142852 in words is "one hundred twenty-two million, one hundred forty-two thousand, eight hundred fifty-two".