2102210201 has 24 divisors (see below), whose sum is σ = 2648233224. Its totient is φ = 1654007040.

The previous prime is 2102210183. The next prime is 2102210213. The reversal of 2102210201 is 1020122012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11526025 + 2090684176 = 3395^2 + 45724^2 .

It is not a de Polignac number, because 2102210201 - 2⁶ = 2102210137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2102210221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106181 + ... + 124413.

It is an arithmetic number, because the mean of its divisors is an integer number (110343051).

Almost surely, 2^2102210201 is an apocalyptic number.

It is an amenable number.

2102210201 is a deficient number, since it is larger than the sum of its proper divisors (546023023).

2102210201 is a wasteful number, since it uses less digits than its factorization.

2102210201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18441 (or 18434 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2102210201 is about 45849.8658776664. The cubic root of 2102210201 is about 1281.0282673647.

Adding to 2102210201 its reverse (1020122012), we get a palindrome (3122332213).

The spelling of 2102210201 in words is "two billion, one hundred two million, two hundred ten thousand, two hundred one".