120172212480 has 144 divisors (see below), whose sum is σ = 384560285760. Its totient is φ = 31982444544.

The previous prime is 120172212451. The next prime is 120172212481. The reversal of 120172212480 is 84212271021.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (120172212481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1923819 + ... + 1985301.

It is an arithmetic number, because the mean of its divisors is an integer number (2670557540).

Almost surely, 2^120172212480 is an apocalyptic number.

120172212480 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 120172212480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192280142880).

120172212480 is an abundant number, since it is smaller than the sum of its proper divisors (264388073280).

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

120172212480 is an equidigital number, since it uses as much as digits as its factorization.

120172212480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62016 (or 62002 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The spelling of 120172212480 in words is "one hundred twenty billion, one hundred seventy-two million, two hundred twelve thousand, four hundred eighty".