210202100201 has 4 divisors (see below), whose sum is σ = 212062295892. Its totient is φ = 208341904512.

The previous prime is 210202100161. The next prime is 210202100219. The reversal of 210202100201 is 102001202012.

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 87335025625 + 122867074576 = 295525^2 + 350524^2 .

It is a cyclic number.

It is not a de Polignac number, because 210202100201 - 2¹⁸ = 210201838057 is a prime.

It is a super-2 number, since 2×210202100201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210202100401) 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, 930097676 + ... + 930097901.

It is an arithmetic number, because the mean of its divisors is an integer number (53015573973).

Almost surely, 2^210202100201 is an apocalyptic number.

It is an amenable number.

210202100201 is a deficient number, since it is larger than the sum of its proper divisors (1860195691).

210202100201 is a wasteful number, since it uses less digits than its factorization.

210202100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860195690.

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

Adding to 210202100201 its reverse (102001202012), we get a palindrome (312203302213).

The spelling of 210202100201 in words is "two hundred ten billion, two hundred two million, one hundred thousand, two hundred one".