20020212210211 has 2 divisors, whose sum is σ = 20020212210212. Its totient is φ = 20020212210210.

The previous prime is 20020212210203. The next prime is 20020212210221. The reversal of 20020212210211 is 11201221202002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20020212210211 - 2³ = 20020212210203 is a prime.

It is a super-2 number, since 2×20020212210211² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20020212210221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010106105105 + 10010106105106.

It is an arithmetic number, because the mean of its divisors is an integer number (10010106105106).

Almost surely, 2^{20020212210211} is an apocalyptic number.

20020212210211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020212210211 is an equidigital number, since it uses as much as digits as its factorization.

20020212210211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20020212210211 its reverse (11201221202002), we get a palindrome (31221433412213).

The spelling of 20020212210211 in words is "twenty trillion, twenty billion, two hundred twelve million, two hundred ten thousand, two hundred eleven".