202120002211 has 16 divisors (see below), whose sum is σ = 205669191168. Its totient is φ = 198602208000.

The previous prime is 202120002179. The next prime is 202120002269. The reversal of 202120002211 is 112200021202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 202120002211 - 2⁵ = 202120002179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202120002191 and 202120002200.

It is not an unprimeable number, because it can be changed into a prime (202120002811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44099826 + ... + 44104408.

It is an arithmetic number, because the mean of its divisors is an integer number (12854324448).

Almost surely, 2^202120002211 is an apocalyptic number.

202120002211 is a deficient number, since it is larger than the sum of its proper divisors (3549188957).

202120002211 is a wasteful number, since it uses less digits than its factorization.

202120002211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7842.

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

Adding to 202120002211 its reverse (112200021202), we get a palindrome (314320023413).

The spelling of 202120002211 in words is "two hundred two billion, one hundred twenty million, two thousand, two hundred eleven".