4122413021 has 8 divisors (see below), whose sum is σ = 4154291064. Its totient is φ = 4090627840.

The previous prime is 4122412999. The next prime is 4122413023. The reversal of 4122413021 is 1203142214.

It can be written as a sum of positive squares in 4 ways, for example, as 568584025 + 3553828996 = 23845^2 + 59614^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4122413021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4122412984 and 4122413002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4122413023) 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, 67265 + ... + 113001.

It is an arithmetic number, because the mean of its divisors is an integer number (519286383).

Almost surely, 2^4122413021 is an apocalyptic number.

It is an amenable number.

4122413021 is a deficient number, since it is larger than the sum of its proper divisors (31878043).

4122413021 is a wasteful number, since it uses less digits than its factorization.

4122413021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46431.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4122413021 is about 64206.0201305142. The cubic root of 4122413021 is about 1603.4318292723.

Adding to 4122413021 its reverse (1203142214), we get a palindrome (5325555235).

It can be divided in two parts, 41224 and 13021, that added together give a palindrome (54245).

The spelling of 4122413021 in words is "four billion, one hundred twenty-two million, four hundred thirteen thousand, twenty-one".