4121021011 has 4 divisors (see below), whose sum is σ = 4123381672. Its totient is φ = 4118660352.

The previous prime is 4121020999. The next prime is 4121021027. The reversal of 4121021011 is 1101201214.

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

It is a cyclic number.

It is not a de Polignac number, because 4121021011 - 2⁹ = 4121020499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4121020982 and 4121021000.

It is not an unprimeable number, because it can be changed into a prime (4121021081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1177710 + ... + 1181203.

It is an arithmetic number, because the mean of its divisors is an integer number (1030845418).

Almost surely, 2^4121021011 is an apocalyptic number.

4121021011 is a deficient number, since it is larger than the sum of its proper divisors (2360661).

4121021011 is a wasteful number, since it uses less digits than its factorization.

4121021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360660.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 4121021011 is about 64195.1790323853. The cubic root of 4121021011 is about 1603.2513326877.

Adding to 4121021011 its reverse (1101201214), we get a palindrome (5222222225).

The spelling of 4121021011 in words is "four billion, one hundred twenty-one million, twenty-one thousand, eleven".