4021420111 has 8 divisors (see below), whose sum is σ = 4160912400. Its totient is φ = 3881982720.

The previous prime is 4021420061. The next prime is 4021420127. The reversal of 4021420111 is 1110241204.

It is a happy number.

4021420111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4021420111 - 2⁹ = 4021419599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021420511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183616 + ... + 204346.

It is an arithmetic number, because the mean of its divisors is an integer number (520114050).

Almost surely, 2^4021420111 is an apocalyptic number.

4021420111 is a deficient number, since it is larger than the sum of its proper divisors (139492289).

4021420111 is a wasteful number, since it uses less digits than its factorization.

4021420111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27449.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 4021420111 is about 63414.6679483540. The cubic root of 4021420111 is about 1590.2295346538.

Adding to 4021420111 its reverse (1110241204), we get a palindrome (5131661315).

The spelling of 4021420111 in words is "four billion, twenty-one million, four hundred twenty thousand, one hundred eleven".