4366101221 has 2 divisors, whose sum is σ = 4366101222. Its totient is φ = 4366101220.

The previous prime is 4366101217. The next prime is 4366101263. The reversal of 4366101221 is 1221016634.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3336333121 + 1029768100 = 57761^2 + 32090^2 .

It is a cyclic number.

It is not a de Polignac number, because 4366101221 - 2² = 4366101217 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4366106221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2183050610 + 2183050611.

It is an arithmetic number, because the mean of its divisors is an integer number (2183050611).

Almost surely, 2^4366101221 is an apocalyptic number.

It is an amenable number.

4366101221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4366101221 is an equidigital number, since it uses as much as digits as its factorization.

4366101221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 4366101221 is about 66076.4800893631. The cubic root of 4366101221 is about 1634.4235073173.

Adding to 4366101221 its reverse (1221016634), we get a palindrome (5587117855).

The spelling of 4366101221 in words is "four billion, three hundred sixty-six million, one hundred one thousand, two hundred twenty-one".