120211530 has 32 divisors (see below), whose sum is σ = 289130688. Its totient is φ = 31987200.

The previous prime is 120211529. The next prime is 120211543. The reversal of 120211530 is 35112021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10650 + ... + 18810.

It is an arithmetic number, because the mean of its divisors is an integer number (9035334).

Almost surely, 2^120211530 is an apocalyptic number.

120211530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120211530 is an abundant number, since it is smaller than the sum of its proper divisors (168919158).

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

120211530 is a wasteful number, since it uses less digits than its factorization.

120211530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8662.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 120211530 is about 10964.1018784030. The cubic root of 120211530 is about 493.5320657609.

Adding to 120211530 its reverse (35112021), we get a palindrome (155323551).

The spelling of 120211530 in words is "one hundred twenty million, two hundred eleven thousand, five hundred thirty".