12210020101 has 4 divisors (see below), whose sum is σ = 12211874752. Its totient is φ = 12208165452.

The previous prime is 12210020089. The next prime is 12210020107. The reversal of 12210020101 is 10102001221.

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 not a de Polignac number, because 12210020101 - 2¹¹ = 12210018053 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 (12210020107) 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, 917415 + ... + 930628.

It is an arithmetic number, because the mean of its divisors is an integer number (3052968688).

Almost surely, 2^12210020101 is an apocalyptic number.

It is an amenable number.

12210020101 is a deficient number, since it is larger than the sum of its proper divisors (1854651).

12210020101 is an equidigital number, since it uses as much as digits as its factorization.

12210020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854650.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12210020101 its reverse (10102001221), we get a palindrome (22312021322).

The spelling of 12210020101 in words is "twelve billion, two hundred ten million, twenty thousand, one hundred one".