1001343412221 has 16 divisors (see below), whose sum is σ = 1356510648000. Its totient is φ = 656890679808.

The previous prime is 1001343412189. The next prime is 1001343412243. The reversal of 1001343412221 is 1222143431001.

It is not a de Polignac number, because 1001343412221 - 2⁵ = 1001343412189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001343412191 and 1001343412200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001343412261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2494546 + ... + 2868003.

It is an arithmetic number, because the mean of its divisors is an integer number (84781915500).

Almost surely, 2^{1001343412221} is an apocalyptic number.

It is an amenable number.

1001343412221 is a deficient number, since it is larger than the sum of its proper divisors (355167235779).

1001343412221 is an equidigital number, since it uses as much as digits as its factorization.

1001343412221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5363548.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1001343412221 its reverse (1222143431001), we get a palindrome (2223486843222).

The spelling of 1001343412221 in words is "one trillion, one billion, three hundred forty-three million, four hundred twelve thousand, two hundred twenty-one".