1348845900221 has 4 divisors (see below), whose sum is σ = 1371707695200. Its totient is φ = 1325984105244.

The previous prime is 1348845900167. The next prime is 1348845900247. The reversal of 1348845900221 is 1220095488431.

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 1348845900221 - 2¹⁰ = 1348845899197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1348895900221) 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, 11430897401 + ... + 11430897518.

It is an arithmetic number, because the mean of its divisors is an integer number (342926923800).

Almost surely, 2^{1348845900221} is an apocalyptic number.

It is an amenable number.

1348845900221 is a deficient number, since it is larger than the sum of its proper divisors (22861794979).

1348845900221 is an equidigital number, since it uses as much as digits as its factorization.

1348845900221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22861794978.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 1348845900221 in words is "one trillion, three hundred forty-eight billion, eight hundred forty-five million, nine hundred thousand, two hundred twenty-one".