210202120122011 has 2 divisors, whose sum is σ = 210202120122012. Its totient is φ = 210202120122010.

The previous prime is 210202120121989. The next prime is 210202120122077. The reversal of 210202120122011 is 110221021202012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210202120122011 is a prime.

It is not a weakly prime, because it can be changed into another prime (210202120182011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105101060061005 + 105101060061006.

It is an arithmetic number, because the mean of its divisors is an integer number (105101060061006).

Almost surely, 2^{210202120122011} is an apocalyptic number.

210202120122011 is a deficient number, since it is larger than the sum of its proper divisors (1).

210202120122011 is an equidigital number, since it uses as much as digits as its factorization.

210202120122011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210202120122011 its reverse (110221021202012), we get a palindrome (320423141324023).

The spelling of 210202120122011 in words is "two hundred ten trillion, two hundred two billion, one hundred twenty million, one hundred twenty-two thousand, eleven".