1350565100221 has 4 divisors (see below), whose sum is σ = 1370722788352. Its totient is φ = 1330407412092.

The previous prime is 1350565100207. The next prime is 1350565100231. The reversal of 1350565100221 is 1220015650531.

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 1350565100221 - 2⁵ = 1350565100189 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 (1350565100231) 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, 10078843965 + ... + 10078844098.

It is an arithmetic number, because the mean of its divisors is an integer number (342680697088).

Almost surely, 2^{1350565100221} is an apocalyptic number.

It is an amenable number.

1350565100221 is a deficient number, since it is larger than the sum of its proper divisors (20157688131).

1350565100221 is an equidigital number, since it uses as much as digits as its factorization.

1350565100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20157688130.

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 1350565100221 in words is "one trillion, three hundred fifty billion, five hundred sixty-five million, one hundred thousand, two hundred twenty-one".