2104220101 has 4 divisors (see below), whose sum is σ = 2227997772. Its totient is φ = 1980442432.

The previous prime is 2104220099. The next prime is 2104220117. The reversal of 2104220101 is 1010224012.

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 1855369476 + 248850625 = 43074^2 + 15775^2 .

It is a cyclic number.

It is not a de Polignac number, because 2104220101 - 2¹ = 2104220099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104220171) 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, 61888810 + ... + 61888843.

It is an arithmetic number, because the mean of its divisors is an integer number (556999443).

Almost surely, 2^2104220101 is an apocalyptic number.

It is an amenable number.

2104220101 is a deficient number, since it is larger than the sum of its proper divisors (123777671).

2104220101 is a wasteful number, since it uses less digits than its factorization.

2104220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123777670.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2104220101 is about 45871.7789168896. The cubic root of 2104220101 is about 1281.4363963249.

Adding to 2104220101 its reverse (1010224012), we get a palindrome (3114444113).

The spelling of 2104220101 in words is "two billion, one hundred four million, two hundred twenty thousand, one hundred one".