120201128 has 16 divisors (see below), whose sum is σ = 235176480. Its totient is φ = 57487408.

The previous prime is 120201127. The next prime is 120201173. The reversal of 120201128 is 821102021.

It is a happy number.

It is a super-2 number, since 2×120201128² = 28896622344944768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120201127) 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, 326450 + ... + 326817.

It is an arithmetic number, because the mean of its divisors is an integer number (14698530).

Almost surely, 2^120201128 is an apocalyptic number.

It is an amenable number.

120201128 is a deficient number, since it is larger than the sum of its proper divisors (114975352).

120201128 is a wasteful number, since it uses less digits than its factorization.

120201128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653296 (or 653292 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 120201128 is about 10963.6275018809. The cubic root of 120201128 is about 493.5178301086.

Adding to 120201128 its reverse (821102021), we get a palindrome (941303149).

The spelling of 120201128 in words is "one hundred twenty million, two hundred one thousand, one hundred twenty-eight".