2100220100203 has 4 divisors (see below), whose sum is σ = 2100383923968. Its totient is φ = 2100056276440.

The previous prime is 2100220100201. The next prime is 2100220100239. The reversal of 2100220100203 is 3020010220012.

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

It is a cyclic number.

It is not a de Polignac number, because 2100220100203 - 2¹ = 2100220100201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100220100201) 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, 81892651 + ... + 81918292.

It is an arithmetic number, because the mean of its divisors is an integer number (525095980992).

Almost surely, 2^{2100220100203} is an apocalyptic number.

2100220100203 is a deficient number, since it is larger than the sum of its proper divisors (163823765).

2100220100203 is a wasteful number, since it uses less digits than its factorization.

2100220100203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163823764.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 2100220100203 its reverse (3020010220012), we get a palindrome (5120230320215).

The spelling of 2100220100203 in words is "two trillion, one hundred billion, two hundred twenty million, one hundred thousand, two hundred three".