11020212010081 has 2 divisors, whose sum is σ = 11020212010082. Its totient is φ = 11020212010080.

The previous prime is 11020212010079. The next prime is 11020212010091. The reversal of 11020212010081 is 18001021202011.

11020212010081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6470028140625 + 4550183869456 = 2543625^2 + 2133116^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020212010081 - 2¹ = 11020212010079 is a prime.

It is a super-2 number, since 2×11020212010081² (a number of 27 digits) contains 22 as substring.

Together with 11020212010079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11020212010091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510106005040 + 5510106005041.

It is an arithmetic number, because the mean of its divisors is an integer number (5510106005041).

Almost surely, 2^{11020212010081} is an apocalyptic number.

It is an amenable number.

11020212010081 is a deficient number, since it is larger than the sum of its proper divisors (1).

11020212010081 is an equidigital number, since it uses as much as digits as its factorization.

11020212010081 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 19.

Adding to 11020212010081 its reverse (18001021202011), we get a palindrome (29021233212092).

The spelling of 11020212010081 in words is "eleven trillion, twenty billion, two hundred twelve million, ten thousand, eighty-one".