122171148 has 72 divisors (see below), whose sum is σ = 343311696. Its totient is φ = 36316800.

The previous prime is 122171143. The next prime is 122171149. The reversal of 122171148 is 841171221.

It is not an unprimeable number, because it can be changed into a prime (122171141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18078 + ... + 23898.

It is an arithmetic number, because the mean of its divisors is an integer number (4768218).

Almost surely, 2^122171148 is an apocalyptic number.

122171148 is a gapful number since it is divisible by the number (18) 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 122171148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171655848).

122171148 is an abundant number, since it is smaller than the sum of its proper divisors (221140548).

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

122171148 is a wasteful number, since it uses less digits than its factorization.

122171148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5895 (or 5890 counting only the distinct ones).

The product of its digits is 896, while the sum is 27.

The square root of 122171148 is about 11053.1058078714. The cubic root of 122171148 is about 496.1993811241.

The spelling of 122171148 in words is "one hundred twenty-two million, one hundred seventy-one thousand, one hundred forty-eight".