3021102421 has 4 divisors (see below), whose sum is σ = 3024133612. Its totient is φ = 3018071232.

The previous prime is 3021102407. The next prime is 3021102479. The reversal of 3021102421 is 1242011203.

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 2118760900 + 902341521 = 46030^2 + 30039^2 .

It is a cyclic number.

It is not a de Polignac number, because 3021102421 - 2²⁹ = 2484231509 is a prime.

It is a super-2 number, since 2×3021102421² = 18254119676344122482, 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 = 3021102395 and 3021102404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3021102221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1514100 + ... + 1516093.

It is an arithmetic number, because the mean of its divisors is an integer number (756033403).

Almost surely, 2^3021102421 is an apocalyptic number.

It is an amenable number.

3021102421 is a deficient number, since it is larger than the sum of its proper divisors (3031191).

3021102421 is an equidigital number, since it uses as much as digits as its factorization.

3021102421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3031190.

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

The square root of 3021102421 is about 54964.5560429628. The cubic root of 3021102421 is about 1445.6233340778.

Adding to 3021102421 its reverse (1242011203), we get a palindrome (4263113624).

The spelling of 3021102421 in words is "three billion, twenty-one million, one hundred two thousand, four hundred twenty-one".