3340140201221 has 2 divisors, whose sum is σ = 3340140201222. Its totient is φ = 3340140201220.

The previous prime is 3340140201199. The next prime is 3340140201247. The reversal of 3340140201221 is 1221020410433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1732027084225 + 1608113116996 = 1316065^2 + 1268114^2 .

It is a cyclic number.

It is not a de Polignac number, because 3340140201221 - 2²⁶ = 3340073092357 is a prime.

It is a super-2 number, since 2×3340140201221² (a number of 26 digits) contains 22 as substring.

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 (3340140201721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1670070100610 + 1670070100611.

It is an arithmetic number, because the mean of its divisors is an integer number (1670070100611).

Almost surely, 2^{3340140201221} is an apocalyptic number.

It is an amenable number.

3340140201221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3340140201221 is an equidigital number, since it uses as much as digits as its factorization.

3340140201221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 3340140201221 its reverse (1221020410433), we get a palindrome (4561160611654).

The spelling of 3340140201221 in words is "three trillion, three hundred forty billion, one hundred forty million, two hundred one thousand, two hundred twenty-one".