2102221101 has 16 divisors (see below), whose sum is σ = 2854255808. Its totient is φ = 1375920000.

The previous prime is 2102221013. The next prime is 2102221103. The reversal of 2102221101 is 1011222012.

It is not a de Polignac number, because 2102221101 - 2⁷ = 2102220973 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 (2102221103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89601 + ... + 110601.

It is an arithmetic number, because the mean of its divisors is an integer number (178390988).

Almost surely, 2^2102221101 is an apocalyptic number.

It is an amenable number.

2102221101 is a deficient number, since it is larger than the sum of its proper divisors (752034707).

2102221101 is a wasteful number, since it uses less digits than its factorization.

2102221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21612.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2102221101 is about 45849.9847437270. The cubic root of 2102221101 is about 1281.0304814129.

Adding to 2102221101 its reverse (1011222012), we get a palindrome (3113443113).

The spelling of 2102221101 in words is "two billion, one hundred two million, two hundred twenty-one thousand, one hundred one".