10212111020101 has 4 divisors (see below), whose sum is σ = 10220891856192. Its totient is φ = 10203330184012.

The previous prime is 10212111020063. The next prime is 10212111020129. The reversal of 10212111020101 is 10102011121201.

It is a happy number.

10212111020101 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10212111020101 is a prime.

It is a super-3 number, since 3×10212111020101³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212111020131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4390416301 + ... + 4390418626.

It is an arithmetic number, because the mean of its divisors is an integer number (2555222964048).

Almost surely, 2^{10212111020101} is an apocalyptic number.

It is an amenable number.

10212111020101 is a deficient number, since it is larger than the sum of its proper divisors (8780836091).

10212111020101 is an equidigital number, since it uses as much as digits as its factorization.

10212111020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8780836090.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10212111020101 its reverse (10102011121201), we get a palindrome (20314122141302).

The spelling of 10212111020101 in words is "ten trillion, two hundred twelve billion, one hundred eleven million, twenty thousand, one hundred one".