4021211213 has 4 divisors (see below), whose sum is σ = 4023091548. Its totient is φ = 4019330880.

The previous prime is 4021211209. The next prime is 4021211219. The reversal of 4021211213 is 3121121204.

4021211213 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3073371844 + 947839369 = 55438^2 + 30787^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021211213 - 2² = 4021211209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4021211191 and 4021211200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021211219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 936956 + ... + 941237.

It is an arithmetic number, because the mean of its divisors is an integer number (1005772887).

Almost surely, 2^4021211213 is an apocalyptic number.

It is an amenable number.

4021211213 is a deficient number, since it is larger than the sum of its proper divisors (1880335).

4021211213 is a wasteful number, since it uses less digits than its factorization.

4021211213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880334.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 4021211213 is about 63413.0208474569. The cubic root of 4021211213 is about 1590.2019986497.

Adding to 4021211213 its reverse (3121121204), we get a palindrome (7142332417).

Subtracting from 4021211213 its reverse (3121121204), we obtain a palindrome (900090009).

The spelling of 4021211213 in words is "four billion, twenty-one million, two hundred eleven thousand, two hundred thirteen".