215025121120 has 48 divisors (see below), whose sum is σ = 521726507568. Its totient is φ = 83685450240.

The previous prime is 215025121081. The next prime is 215025121127. The reversal of 215025121120 is 21121520512.

It is a happy number.

215025121120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 215025121091 and 215025121100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215025121127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18154986 + ... + 18166825.

It is an arithmetic number, because the mean of its divisors is an integer number (10869302241).

Almost surely, 2^215025121120 is an apocalyptic number.

215025121120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215025121120 is an abundant number, since it is smaller than the sum of its proper divisors (306701386448).

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

215025121120 is a wasteful number, since it uses less digits than its factorization.

215025121120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36321863 (or 36321855 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 215025121120 its reverse (21121520512), we get a palindrome (236146641632).

The spelling of 215025121120 in words is "two hundred fifteen billion, twenty-five million, one hundred twenty-one thousand, one hundred twenty".