120225661920 has 1152 divisors, whose sum is σ = 553384016640. Its totient is φ = 23038525440.

The previous prime is 120225661889. The next prime is 120225661921. The reversal of 120225661920 is 29166522021.

120225661920 is a `hidden beast` number, since 1 + 2 + 0 + 2 + 2 + 566 + 1 + 92 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120225661921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 64601790 + ... + 64603650.

It is an arithmetic number, because the mean of its divisors is an integer number (480368070).

Almost surely, 2^120225661920 is an apocalyptic number.

120225661920 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 120225661920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276692008320).

120225661920 is an abundant number, since it is smaller than the sum of its proper divisors (433158354720).

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

120225661920 is a wasteful number, since it uses less digits than its factorization.

120225661920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948 (or 1937 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 120225661920 in words is "one hundred twenty billion, two hundred twenty-five million, six hundred sixty-one thousand, nine hundred twenty".