3311400221 has 4 divisors (see below), whose sum is σ = 3316471932. Its totient is φ = 3306328512.

The previous prime is 3311400217. The next prime is 3311400223. The reversal of 3311400221 is 1220041133.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 404572996 + 2906827225 = 20114^2 + 53915^2 .

It is a cyclic number.

It is not a de Polignac number, because 3311400221 - 2² = 3311400217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3311400221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3311400223) 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, 2534876 + ... + 2536181.

It is an arithmetic number, because the mean of its divisors is an integer number (829117983).

Almost surely, 2^3311400221 is an apocalyptic number.

It is an amenable number.

3311400221 is a deficient number, since it is larger than the sum of its proper divisors (5071711).

3311400221 is an equidigital number, since it uses as much as digits as its factorization.

3311400221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5071710.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3311400221 is about 57544.7671035343. The cubic root of 3311400221 is about 1490.5179979074.

Adding to 3311400221 its reverse (1220041133), we get a palindrome (4531441354).

The spelling of 3311400221 in words is "three billion, three hundred eleven million, four hundred thousand, two hundred twenty-one".