20202221210211 has 8 divisors (see below), whose sum is σ = 29929216607760. Its totient is φ = 13468147473456.

The previous prime is 20202221210191. The next prime is 20202221210257. The reversal of 20202221210211 is 11201212220202.

It is a happy number.

20202221210211 is a `hidden beast` number, since 2 + 0 + 20 + 2 + 221 + 210 + 211 = 666.

It is not a de Polignac number, because 20202221210211 - 2¹⁸ = 20202220948067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20202221210291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374115207570 + ... + 374115207623.

It is an arithmetic number, because the mean of its divisors is an integer number (3741152075970).

Almost surely, 2^{20202221210211} is an apocalyptic number.

20202221210211 is a deficient number, since it is larger than the sum of its proper divisors (9726995397549).

20202221210211 is an equidigital number, since it uses as much as digits as its factorization.

20202221210211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748230415202 (or 748230415196 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20202221210211 its reverse (11201212220202), we get a palindrome (31403433430413).

The spelling of 20202221210211 in words is "twenty trillion, two hundred two billion, two hundred twenty-one million, two hundred ten thousand, two hundred eleven".