4344122021 has 2 divisors, whose sum is σ = 4344122022. Its totient is φ = 4344122020.

The previous prime is 4344121993. The next prime is 4344122023. The reversal of 4344122021 is 1202214434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3162825121 + 1181296900 = 56239^2 + 34370^2 .

It is a cyclic number.

It is not a de Polignac number, because 4344122021 - 2²² = 4339927717 is a prime.

It is a super-2 number, since 2×4344122021² = 37742792266674248882, which contains 22 as substring.

Together with 4344122023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4344122023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2172061010 + 2172061011.

It is an arithmetic number, because the mean of its divisors is an integer number (2172061011).

Almost surely, 2^4344122021 is an apocalyptic number.

It is an amenable number.

4344122021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4344122021 is an equidigital number, since it uses as much as digits as its factorization.

4344122021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 4344122021 is about 65909.9538840682. The cubic root of 4344122021 is about 1631.6762988818.

Adding to 4344122021 its reverse (1202214434), we get a palindrome (5546336455).

The spelling of 4344122021 in words is "four billion, three hundred forty-four million, one hundred twenty-two thousand, twenty-one".