20010202211 has 4 divisors (see below), whose sum is σ = 20034340800. Its totient is φ = 19986063624.

The previous prime is 20010202187. The next prime is 20010202243. The reversal of 20010202211 is 11220201002.

It is a happy number.

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 20010202211 - 2¹⁰ = 20010201187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20010202192 and 20010202201.

It is not an unprimeable number, because it can be changed into a prime (20010204211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12068051 + ... + 12069708.

It is an arithmetic number, because the mean of its divisors is an integer number (5008585200).

Almost surely, 2^20010202211 is an apocalyptic number.

20010202211 is a deficient number, since it is larger than the sum of its proper divisors (24138589).

20010202211 is an equidigital number, since it uses as much as digits as its factorization.

20010202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24138588.

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

Adding to 20010202211 its reverse (11220201002), we get a palindrome (31230403213).

The spelling of 20010202211 in words is "twenty billion, ten million, two hundred two thousand, two hundred eleven".