2102202121003 has 4 divisors (see below), whose sum is σ = 2102222804920. Its totient is φ = 2102181437088.

The previous prime is 2102202120989. The next prime is 2102202121013. The reversal of 2102202121003 is 3001212022012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102202121003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102202121013) 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, 10188750 + ... + 10393027.

It is an arithmetic number, because the mean of its divisors is an integer number (525555701230).

Almost surely, 2^{2102202121003} is an apocalyptic number.

2102202121003 is a deficient number, since it is larger than the sum of its proper divisors (20683917).

2102202121003 is a wasteful number, since it uses less digits than its factorization.

2102202121003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20683916.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2102202121003 its reverse (3001212022012), we get a palindrome (5103414143015).

The spelling of 2102202121003 in words is "two trillion, one hundred two billion, two hundred two million, one hundred twenty-one thousand, three".