202102121200211 has 4 divisors (see below), whose sum is σ = 202102181604312. Its totient is φ = 202102060796112.

The previous prime is 202102121200157. The next prime is 202102121200237. The reversal of 202102121200211 is 112002121201202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 202102121200211 - 2¹⁴ = 202102121183827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202102121200211.

It is not an unprimeable number, because it can be changed into a prime (202102121200261) 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, 24869450 + ... + 31979583.

It is an arithmetic number, because the mean of its divisors is an integer number (50525545401078).

Almost surely, 2^{202102121200211} is an apocalyptic number.

202102121200211 is a deficient number, since it is larger than the sum of its proper divisors (60404101).

202102121200211 is an equidigital number, since it uses as much as digits as its factorization.

202102121200211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60404100.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 202102121200211 its reverse (112002121201202), we get a palindrome (314104242401413).

Subtracting from 202102121200211 its reverse (112002121201202), we obtain a palindrome (90099999999009).

The spelling of 202102121200211 in words is "two hundred two trillion, one hundred two billion, one hundred twenty-one million, two hundred thousand, two hundred eleven".