2100122033 has 4 divisors (see below), whose sum is σ = 2101406580. Its totient is φ = 2098837488.

The previous prime is 2100121999. The next prime is 2100122039. The reversal of 2100122033 is 3302210012.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 945685504 + 1154436529 = 30752^2 + 33977^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100122033 - 2²⁴ = 2083344817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2100121999 and 2100122017.

It is not an unprimeable number, because it can be changed into a prime (2100122039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639818 + ... + 643091.

It is an arithmetic number, because the mean of its divisors is an integer number (525351645).

Almost surely, 2^2100122033 is an apocalyptic number.

It is an amenable number.

2100122033 is a deficient number, since it is larger than the sum of its proper divisors (1284547).

2100122033 is a wasteful number, since it uses less digits than its factorization.

2100122033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284546.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2100122033 is about 45827.0884194054. The cubic root of 2100122033 is about 1280.6039697320.

Adding to 2100122033 its reverse (3302210012), we get a palindrome (5402332045).

It can be divided in two parts, 21001 and 22033, that added together give a palindrome (43034).

The spelling of 2100122033 in words is "two billion, one hundred million, one hundred twenty-two thousand, thirty-three".