102003221001001 has 4 divisors (see below), whose sum is σ = 102008873106432. Its totient is φ = 101997568895572.

The previous prime is 102003221000983. The next prime is 102003221001103. The reversal of 102003221001001 is 100100122300201.

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 a de Polignac number, because none of the positive numbers 2^k-102003221001001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102003221001401) 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, 2826025645 + ... + 2826061738.

It is an arithmetic number, because the mean of its divisors is an integer number (25502218276608).

Almost surely, 2^{102003221001001} is an apocalyptic number.

It is an amenable number.

102003221001001 is a deficient number, since it is larger than the sum of its proper divisors (5652105431).

102003221001001 is an equidigital number, since it uses as much as digits as its factorization.

102003221001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5652105430.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 102003221001001 its reverse (100100122300201), we get a palindrome (202103343301202).

The spelling of 102003221001001 in words is "one hundred two trillion, three billion, two hundred twenty-one million, one thousand, one".