4221321101 has 2 divisors, whose sum is σ = 4221321102. Its totient is φ = 4221321100.

The previous prime is 4221321061. The next prime is 4221321103. The reversal of 4221321101 is 1011231224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4189455076 + 31866025 = 64726^2 + 5645^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4221321101 is a prime.

Together with 4221321103, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4221321101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4221321103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110660550 + 2110660551.

It is an arithmetic number, because the mean of its divisors is an integer number (2110660551).

Almost surely, 2^4221321101 is an apocalyptic number.

It is an amenable number.

4221321101 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221321101 is an equidigital number, since it uses as much as digits as its factorization.

4221321101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 4221321101 is about 64971.6946138855. The cubic root of 4221321101 is about 1616.1542038511.

Adding to 4221321101 its reverse (1011231224), we get a palindrome (5232552325).

The spelling of 4221321101 in words is "four billion, two hundred twenty-one million, three hundred twenty-one thousand, one hundred one".