3315221401 has 4 divisors (see below), whose sum is σ = 3315340900. Its totient is φ = 3315101904.

The previous prime is 3315221383. The next prime is 3315221407. The reversal of 3315221401 is 1041225133.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2822159376 + 493062025 = 53124^2 + 22205^2 .

It is a cyclic number.

It is not a de Polignac number, because 3315221401 - 2⁵ = 3315221369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3315221407) 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, 5935 + ... + 81643.

It is an arithmetic number, because the mean of its divisors is an integer number (828835225).

Almost surely, 2^3315221401 is an apocalyptic number.

It is an amenable number.

3315221401 is a deficient number, since it is larger than the sum of its proper divisors (119499).

3315221401 is an equidigital number, since it uses as much as digits as its factorization.

3315221401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119498.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 3315221401 is about 57577.9593334116. The cubic root of 3315221401 is about 1491.0911037240.

Adding to 3315221401 its reverse (1041225133), we get a palindrome (4356446534).

The spelling of 3315221401 in words is "three billion, three hundred fifteen million, two hundred twenty-one thousand, four hundred one".