120211001 has 4 divisors (see below), whose sum is σ = 120248052. Its totient is φ = 120173952.

The previous prime is 120210983. The next prime is 120211009. The reversal of 120211001 is 100112021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41267776 + 78943225 = 6424^2 + 8885^2 .

It is a cyclic number.

It is not a de Polignac number, because 120211001 - 2¹⁴ = 120194617 is a prime.

It is a super-2 number, since 2×120211001² = 28901369522844002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120211001.

It is not an unprimeable number, because it can be changed into a prime (120211009) 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, 13136 + ... + 20321.

It is an arithmetic number, because the mean of its divisors is an integer number (30062013).

Almost surely, 2^120211001 is an apocalyptic number.

It is an amenable number.

120211001 is a deficient number, since it is larger than the sum of its proper divisors (37051).

120211001 is an equidigital number, since it uses as much as digits as its factorization.

120211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37050.

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

The square root of 120211001 is about 10964.0777541935. The cubic root of 120211001 is about 493.5313418180.

Adding to 120211001 its reverse (100112021), we get a palindrome (220323022).

It can be divided in two parts, 12021 and 1001, that multiplied together give a palindrome (12033021).

The spelling of 120211001 in words is "one hundred twenty million, two hundred eleven thousand, one".