120010010172 has 24 divisors (see below), whose sum is σ = 301563615696.
Its totient is φ = 36926156928.
The previous prime is 120010010063. The next prime is 120010010173. The reversal of 120010010172 is 271010010021.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120010010173) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384647313 + ... + 384647624.
It is an arithmetic number, because the mean of its divisors is an integer number (12565150654).
Almost surely, 2120010010172 is an apocalyptic number.
120010010172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
120010010172 is an abundant number, since it is smaller than the sum of its proper divisors (181553605524).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120010010172 is a wasteful number, since it uses less digits than its factorization.
120010010172 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 769294957 (or 769294955 counting only the distinct ones).
The product of its (nonzero) digits is 28, while the sum is 15.
Adding to 120010010172 its reverse (271010010021), we get a palindrome (391020020193).
The spelling of 120010010172 in words is "one hundred twenty billion, ten million, ten thousand, one hundred seventy-two".