12220312101 has 8 divisors (see below), whose sum is σ = 16301694240. Its totient is φ = 8142902352.

The previous prime is 12220312021. The next prime is 12220312123. The reversal of 12220312101 is 10121302221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12220312101 - 2⁹ = 12220311589 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220312151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 985911 + ... + 998228.

It is an arithmetic number, because the mean of its divisors is an integer number (2037711780).

Almost surely, 2^12220312101 is an apocalyptic number.

It is an amenable number.

12220312101 is a deficient number, since it is larger than the sum of its proper divisors (4081382139).

12220312101 is a wasteful number, since it uses less digits than its factorization.

12220312101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986195.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12220312101 its reverse (10121302221), we get a palindrome (22341614322).

The spelling of 12220312101 in words is "twelve billion, two hundred twenty million, three hundred twelve thousand, one hundred one".