120214021 has 4 divisors (see below), whose sum is σ = 127285452. Its totient is φ = 113142592.

The previous prime is 120213997. The next prime is 120214027. The reversal of 120214021 is 120412021.

It is a happy number.

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 83064996 + 37149025 = 9114^2 + 6095^2 .

It is a cyclic number.

It is not a de Polignac number, because 120214021 - 2¹⁵ = 120181253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120213992 and 120214010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120214027) 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 3 ways as a sum of consecutive naturals, for example, 3535690 + ... + 3535723.

It is an arithmetic number, because the mean of its divisors is an integer number (31821363).

Almost surely, 2^120214021 is an apocalyptic number.

It is an amenable number.

120214021 is a deficient number, since it is larger than the sum of its proper divisors (7071431).

120214021 is an equidigital number, since it uses as much as digits as its factorization.

120214021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7071430.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 120214021 is about 10964.2154758104. The cubic root of 120214021 is about 493.5354746960.

Adding to 120214021 its reverse (120412021), we get a palindrome (240626042).

The spelling of 120214021 in words is "one hundred twenty million, two hundred fourteen thousand, twenty-one".