120215120 has 20 divisors (see below), whose sum is σ = 279500340. Its totient is φ = 48086016.

The previous prime is 120215101. The next prime is 120215129. The reversal of 120215120 is 21512021.

It can be written as a sum of positive squares in 2 ways, for example, as 31629376 + 88585744 = 5624^2 + 9412^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×120215120² = 28903350153228800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120215095 and 120215104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120215129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 751265 + ... + 751424.

It is an arithmetic number, because the mean of its divisors is an integer number (13975017).

Almost surely, 2^120215120 is an apocalyptic number.

120215120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120215120 is an abundant number, since it is smaller than the sum of its proper divisors (159285220).

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

120215120 is a wasteful number, since it uses less digits than its factorization.

120215120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502702 (or 1502696 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 120215120 is about 10964.2655932807. The cubic root of 120215120 is about 493.5369786632.

Adding to 120215120 its reverse (21512021), we get a palindrome (141727141).

The spelling of 120215120 in words is "one hundred twenty million, two hundred fifteen thousand, one hundred twenty".