210202120201 has 4 divisors (see below), whose sum is σ = 210203102592. Its totient is φ = 210201137812.

The previous prime is 210202120189. The next prime is 210202120229. The reversal of 210202120201 is 102021202012.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 210202120201 - 2²¹ = 210200023049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210202120231) 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, 18805 + ... + 648658.

It is an arithmetic number, because the mean of its divisors is an integer number (52550775648).

Almost surely, 2^210202120201 is an apocalyptic number.

It is an amenable number.

210202120201 is a deficient number, since it is larger than the sum of its proper divisors (982391).

210202120201 is an equidigital number, since it uses as much as digits as its factorization.

210202120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982390.

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

Adding to 210202120201 its reverse (102021202012), we get a palindrome (312223322213).

It can be divided in two parts, 2 and 10202120201, that multiplied together give a palindrome (20404240402).

The spelling of 210202120201 in words is "two hundred ten billion, two hundred two million, one hundred twenty thousand, two hundred one".