3540313115221 has 4 divisors (see below), whose sum is σ = 3540388798432. Its totient is φ = 3540237432012.

The previous prime is 3540313115191. The next prime is 3540313115239. The reversal of 3540313115221 is 1225113130453.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3540313115221 - 2⁷ = 3540313115093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3540313115291) 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 in 3 ways as a sum of consecutive naturals, for example, 37771395 + ... + 37865008.

It is an arithmetic number, because the mean of its divisors is an integer number (885097199608).

Almost surely, 2^{3540313115221} is an apocalyptic number.

It is an amenable number.

3540313115221 is a deficient number, since it is larger than the sum of its proper divisors (75683211).

3540313115221 is an equidigital number, since it uses as much as digits as its factorization.

3540313115221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75683210.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 3540313115221 its reverse (1225113130453), we get a palindrome (4765426245674).

The spelling of 3540313115221 in words is "three trillion, five hundred forty billion, three hundred thirteen million, one hundred fifteen thousand, two hundred twenty-one".