10202121210011 has 2 divisors, whose sum is σ = 10202121210012. Its totient is φ = 10202121210010.

The previous prime is 10202121209999. The next prime is 10202121210019. The reversal of 10202121210011 is 11001212120201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10202121210011 is a prime.

It is not a weakly prime, because it can be changed into another prime (10202121210019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101060605005 + 5101060605006.

It is an arithmetic number, because the mean of its divisors is an integer number (5101060605006).

Almost surely, 2^{10202121210011} is an apocalyptic number.

10202121210011 is a deficient number, since it is larger than the sum of its proper divisors (1).

10202121210011 is an equidigital number, since it uses as much as digits as its factorization.

10202121210011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10202121210011 its reverse (11001212120201), we get a palindrome (21203333330212).

The spelling of 10202121210011 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, two hundred ten thousand, eleven".