12210100101 has 12 divisors (see below), whose sum is σ = 17771445120. Its totient is φ = 8077928040.

The previous prime is 12210100081. The next prime is 12210100109. The reversal of 12210100101 is 10100101221.

It is a happy number.

It is not a de Polignac number, because 12210100101 - 2⁹ = 12210099589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210100109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5176981 + ... + 5179338.

It is an arithmetic number, because the mean of its divisors is an integer number (1480953760).

Almost surely, 2^12210100101 is an apocalyptic number.

It is an amenable number.

12210100101 is a deficient number, since it is larger than the sum of its proper divisors (5561345019).

12210100101 is a wasteful number, since it uses less digits than its factorization.

12210100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10356456 (or 10356453 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12210100101 its reverse (10100101221), we get a palindrome (22310201322).

The spelling of 12210100101 in words is "twelve billion, two hundred ten million, one hundred thousand, one hundred one".