20010204211 has 2 divisors, whose sum is σ = 20010204212. Its totient is φ = 20010204210.

The previous prime is 20010204209. The next prime is 20010204223. The reversal of 20010204211 is 11240201002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20010204211 - 2¹ = 20010204209 is a prime.

Together with 20010204209, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20010204191 and 20010204200.

It is not a weakly prime, because it can be changed into another prime (20010204271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005102105 + 10005102106.

It is an arithmetic number, because the mean of its divisors is an integer number (10005102106).

Almost surely, 2^20010204211 is an apocalyptic number.

20010204211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010204211 is an equidigital number, since it uses as much as digits as its factorization.

20010204211 is an evil number, because the sum of its binary digits is even.

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

Adding to 20010204211 its reverse (11240201002), we get a palindrome (31250405213).

The spelling of 20010204211 in words is "twenty billion, ten million, two hundred four thousand, two hundred eleven".