3451100221 has 2 divisors, whose sum is σ = 3451100222. Its totient is φ = 3451100220.

The previous prime is 3451100197. The next prime is 3451100231. The reversal of 3451100221 is 1220011543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2007936100 + 1443164121 = 44810^2 + 37989^2 .

It is a cyclic number.

It is not a de Polignac number, because 3451100221 - 2²¹ = 3449003069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3451100231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1725550110 + 1725550111.

It is an arithmetic number, because the mean of its divisors is an integer number (1725550111).

Almost surely, 2^3451100221 is an apocalyptic number.

It is an amenable number.

3451100221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3451100221 is an equidigital number, since it uses as much as digits as its factorization.

3451100221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 3451100221 is about 58746.0655788964. The cubic root of 3451100221 is about 1511.1904156102.

Adding to 3451100221 its reverse (1220011543), we get a palindrome (4671111764).

The spelling of 3451100221 in words is "three billion, four hundred fifty-one million, one hundred thousand, two hundred twenty-one".