210202021201 has 4 divisors (see below), whose sum is σ = 210203658352. Its totient is φ = 210200384052.

The previous prime is 210202021193. The next prime is 210202021261. The reversal of 210202021201 is 102120202012.

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.

It is a cyclic number.

It is not a de Polignac number, because 210202021201 - 2³ = 210202021193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210202021261) 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, 607911 + ... + 888796.

It is an arithmetic number, because the mean of its divisors is an integer number (52550914588).

Almost surely, 2^210202021201 is an apocalyptic number.

It is an amenable number.

210202021201 is a deficient number, since it is larger than the sum of its proper divisors (1637151).

210202021201 is a wasteful number, since it uses less digits than its factorization.

210202021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637150.

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

Adding to 210202021201 its reverse (102120202012), we get a palindrome (312322223213).

The spelling of 210202021201 in words is "two hundred ten billion, two hundred two million, twenty-one thousand, two hundred one".