120210101 has 4 divisors (see below), whose sum is σ = 131138304. Its totient is φ = 109281900.

The previous prime is 120210091. The next prime is 120210109. The reversal of 120210101 is 101012021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120210101 - 2⁶ = 120210037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120210109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5464085 + ... + 5464106.

It is an arithmetic number, because the mean of its divisors is an integer number (32784576).

Almost surely, 2^120210101 is an apocalyptic number.

120210101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120210101 is a deficient number, since it is larger than the sum of its proper divisors (10928203).

120210101 is a wasteful number, since it uses less digits than its factorization.

120210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10928202.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 120210101 is about 10964.0367109929. The cubic root of 120210101 is about 493.5301101523.

Adding to 120210101 its reverse (101012021), we get a palindrome (221222122).

The spelling of 120210101 in words is "one hundred twenty million, two hundred ten thousand, one hundred one".