3020122421 has 4 divisors (see below), whose sum is σ = 3020648844. Its totient is φ = 3019596000.

The previous prime is 3020122397. The next prime is 3020122429. The reversal of 3020122421 is 1242210203.

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 2640418225 + 379704196 = 51385^2 + 19486^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3020122421 is a prime.

It is a super-2 number, since 2×3020122421² = 18242278875653802482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3020122421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020122429) 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, 254510 + ... + 266111.

It is an arithmetic number, because the mean of its divisors is an integer number (755162211).

Almost surely, 2^3020122421 is an apocalyptic number.

It is an amenable number.

3020122421 is a deficient number, since it is larger than the sum of its proper divisors (526423).

3020122421 is an equidigital number, since it uses as much as digits as its factorization.

3020122421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526422.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 3020122421 is about 54955.6404839394. The cubic root of 3020122421 is about 1445.4670043805.

Adding to 3020122421 its reverse (1242210203), we get a palindrome (4262332624).

The spelling of 3020122421 in words is "three billion, twenty million, one hundred twenty-two thousand, four hundred twenty-one".