12700020221 has 8 divisors (see below), whose sum is σ = 15368091840. Its totient is φ = 10245394368.

The previous prime is 12700020191. The next prime is 12700020251. The reversal of 12700020221 is 12202000721.

It is an interprime number because it is at equal distance from previous prime (12700020191) and next prime (12700020251).

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

It is a cyclic number.

It is not a de Polignac number, because 12700020221 - 2²² = 12695825917 is a prime.

It is a super-2 number, since 2×12700020221² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12700020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12700020251) 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, 53361311 + ... + 53361548.

It is an arithmetic number, because the mean of its divisors is an integer number (1921011480).

Almost surely, 2^12700020221 is an apocalyptic number.

It is an amenable number.

12700020221 is a deficient number, since it is larger than the sum of its proper divisors (2668071619).

12700020221 is a wasteful number, since it uses less digits than its factorization.

12700020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106722883.

The product of its (nonzero) digits is 112, while the sum is 17.

Adding to 12700020221 its reverse (12202000721), we get a palindrome (24902020942).

The spelling of 12700020221 in words is "twelve billion, seven hundred million, twenty thousand, two hundred twenty-one".