20202201211 has 4 divisors (see below), whose sum is σ = 20202777424. Its totient is φ = 20201625000.

The previous prime is 20202201163. The next prime is 20202201223. The reversal of 20202201211 is 11210220202.

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 20202201211 - 2⁷ = 20202201083 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20202201191 and 20202201200.

It is not an unprimeable number, because it can be changed into a prime (20202201281) 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, 231855 + ... + 306856.

It is an arithmetic number, because the mean of its divisors is an integer number (5050694356).

Almost surely, 2^20202201211 is an apocalyptic number.

20202201211 is a deficient number, since it is larger than the sum of its proper divisors (576213).

20202201211 is an equidigital number, since it uses as much as digits as its factorization.

20202201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576212.

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

Adding to 20202201211 its reverse (11210220202), we get a palindrome (31412421413).

The spelling of 20202201211 in words is "twenty billion, two hundred two million, two hundred one thousand, two hundred eleven".