4212030121 has 8 divisors (see below), whose sum is σ = 4536660744. Its totient is φ = 3887489280.

The previous prime is 4212030113. The next prime is 4212030157. The reversal of 4212030121 is 1210302124.

It can be written as a sum of positive squares in 4 ways, for example, as 761760000 + 3450270121 = 27600^2 + 58739^2 .

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 4212030121 - 2³ = 4212030113 is a prime.

It is a super-2 number, since 2×4212030121² = 35482395480422549282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4212030095 and 4212030104.

It is not an unprimeable number, because it can be changed into a prime (4212030421) 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 7 ways as a sum of consecutive naturals, for example, 99615 + ... + 135451.

It is an arithmetic number, because the mean of its divisors is an integer number (567082593).

Almost surely, 2^4212030121 is an apocalyptic number.

It is an amenable number.

4212030121 is a deficient number, since it is larger than the sum of its proper divisors (324630623).

4212030121 is a wasteful number, since it uses less digits than its factorization.

4212030121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44891.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 4212030121 is about 64900.1550152232. The cubic root of 4212030121 is about 1614.9676332786.

Adding to 4212030121 its reverse (1210302124), we get a palindrome (5422332245).

The spelling of 4212030121 in words is "four billion, two hundred twelve million, thirty thousand, one hundred twenty-one".