4101120021 has 4 divisors (see below), whose sum is σ = 5468160032. Its totient is φ = 2734080012.

The previous prime is 4101120013. The next prime is 4101120053. The reversal of 4101120021 is 1200211014.

It is a happy number.

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 not a de Polignac number, because 4101120021 - 2³ = 4101120013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4101119979 and 4101120006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4101120061) 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, 683520001 + ... + 683520006.

It is an arithmetic number, because the mean of its divisors is an integer number (1367040008).

Almost surely, 2^4101120021 is an apocalyptic number.

It is an amenable number.

4101120021 is a deficient number, since it is larger than the sum of its proper divisors (1367040011).

4101120021 is a wasteful number, since it uses less digits than its factorization.

4101120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367040010.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 4101120021 is about 64039.9876717665. The cubic root of 4101120021 is about 1600.6663918137. Note that the first 3 decimals are identical.

Adding to 4101120021 its reverse (1200211014), we get a palindrome (5301331035).

The spelling of 4101120021 in words is "four billion, one hundred one million, one hundred twenty thousand, twenty-one".