2102021210011 has 2 divisors, whose sum is σ = 2102021210012. Its totient is φ = 2102021210010.

The previous prime is 2102021209993. The next prime is 2102021210053. The reversal of 2102021210011 is 1100121202012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102021210011 is a prime.

It is a super-2 number, since 2×2102021210011² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2102021209973 and 2102021210000.

It is not a weakly prime, because it can be changed into another prime (2102021210071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051010605005 + 1051010605006.

It is an arithmetic number, because the mean of its divisors is an integer number (1051010605006).

Almost surely, 2^{2102021210011} is an apocalyptic number.

2102021210011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102021210011 is an equidigital number, since it uses as much as digits as its factorization.

2102021210011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2102021210011 its reverse (1100121202012), we get a palindrome (3202142412023).

The spelling of 2102021210011 in words is "two trillion, one hundred two billion, twenty-one million, two hundred ten thousand, eleven".