120201620 has 96 divisors (see below), whose sum is σ = 318608640. Its totient is φ = 37002240.

The previous prime is 120201617. The next prime is 120201623. The reversal of 120201620 is 26102021.

It is an interprime number because it is at equal distance from previous prime (120201617) and next prime (120201623).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 120201595 and 120201604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120201623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136622 + ... + 137498.

It is an arithmetic number, because the mean of its divisors is an integer number (3318840).

Almost surely, 2^120201620 is an apocalyptic number.

120201620 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 120201620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159304320).

120201620 is an abundant number, since it is smaller than the sum of its proper divisors (198407020).

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

120201620 is a wasteful number, since it uses less digits than its factorization.

120201620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 120201620 is about 10963.6499396871. The cubic root of 120201620 is about 493.5185034535.

Adding to 120201620 its reverse (26102021), we get a palindrome (146303641).

The spelling of 120201620 in words is "one hundred twenty million, two hundred one thousand, six hundred twenty".