2100220533 has 12 divisors (see below), whose sum is σ = 3034052268. Its totient is φ = 1399962240.

The previous prime is 2100220523. The next prime is 2100220547. The reversal of 2100220533 is 3350220012.

It can be written as a sum of positive squares in 2 ways, for example, as 2040961329 + 59259204 = 45177^2 + 7698^2 .

It is not a de Polignac number, because 2100220533 - 2⁴ = 2100220517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100220523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112443 + ... + 129783.

It is an arithmetic number, because the mean of its divisors is an integer number (252837689).

Almost surely, 2^2100220533 is an apocalyptic number.

It is an amenable number.

2100220533 is a deficient number, since it is larger than the sum of its proper divisors (933831735).

2100220533 is a wasteful number, since it uses less digits than its factorization.

2100220533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30804 (or 30801 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 2100220533 is about 45828.1630986886. The cubic root of 2100220533 is about 1280.6239903970.

Adding to 2100220533 its reverse (3350220012), we get a palindrome (5450440545).

The spelling of 2100220533 in words is "two billion, one hundred million, two hundred twenty thousand, five hundred thirty-three".