1001102032221 has 4 divisors (see below), whose sum is σ = 1334802709632. Its totient is φ = 667401354812.

The previous prime is 1001102032211. The next prime is 1001102032247. The reversal of 1001102032221 is 1222302011001.

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 1001102032221 - 2²⁷ = 1000967814493 is a prime.

It is a super-2 number, since 2×1001102032221² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1001102032221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001102032201) 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, 166850338701 + ... + 166850338706.

It is an arithmetic number, because the mean of its divisors is an integer number (333700677408).

Almost surely, 2^{1001102032221} is an apocalyptic number.

It is an amenable number.

1001102032221 is a deficient number, since it is larger than the sum of its proper divisors (333700677411).

1001102032221 is an equidigital number, since it uses as much as digits as its factorization.

1001102032221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333700677410.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1001102032221 its reverse (1222302011001), we get a palindrome (2223404043222).

The spelling of 1001102032221 in words is "one trillion, one billion, one hundred two million, thirty-two thousand, two hundred twenty-one".