10212111101 has 4 divisors (see below), whose sum is σ = 10231712604. Its totient is φ = 10192509600.

The previous prime is 10212111083. The next prime is 10212111103. The reversal of 10212111101 is 10111121201.

10212111101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7039042201 + 3173068900 = 83899^2 + 56330^2 .

It is a cyclic number.

It is not a de Polignac number, because 10212111101 - 2¹⁸ = 10211848957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212111103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9799970 + ... + 9801011.

It is an arithmetic number, because the mean of its divisors is an integer number (2557928151).

Almost surely, 2^10212111101 is an apocalyptic number.

It is an amenable number.

10212111101 is a deficient number, since it is larger than the sum of its proper divisors (19601503).

10212111101 is an equidigital number, since it uses as much as digits as its factorization.

10212111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19601502.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10212111101 its reverse (10111121201), we get a palindrome (20323232302).

The spelling of 10212111101 in words is "ten billion, two hundred twelve million, one hundred eleven thousand, one hundred one".