2101102201 has 6 divisors (see below), whose sum is σ = 2309476106. Its totient is φ = 1910092800.

The previous prime is 2101102189. The next prime is 2101102217. The reversal of 2101102201 is 1022011012.

It can be written as a sum of positive squares in only one way, i.e., 2068885225 + 32216976 = 45485^2 + 5676^2 .

It is not a de Polignac number, because 2101102201 - 2⁵ = 2101102169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101102261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8682120 + ... + 8682361.

Almost surely, 2^2101102201 is an apocalyptic number.

It is an amenable number.

2101102201 is a deficient number, since it is larger than the sum of its proper divisors (208373905).

2101102201 is a wasteful number, since it uses less digits than its factorization.

2101102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17364503 (or 17364492 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2101102201 is about 45837.7813708299. The cubic root of 2101102201 is about 1280.8031663796.

Adding to 2101102201 its reverse (1022011012), we get a palindrome (3123113213).

The spelling of 2101102201 in words is "two billion, one hundred one million, one hundred two thousand, two hundred one".