12701010721 has 8 divisors (see below), whose sum is σ = 14547772800. Its totient is φ = 10862331648.

The previous prime is 12701010701. The next prime is 12701010727.

12701010721 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 12701010721 - 2⁵ = 12701010689 is a prime.

It is a super-2 number, since 2×12701010721² (a number of 21 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12701010692 and 12701010701.

It is not an unprimeable number, because it can be changed into a prime (12701010727) 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, 2017381 + ... + 2023666.

It is an arithmetic number, because the mean of its divisors is an integer number (1818471600).

Almost surely, 2^12701010721 is an apocalyptic number.

It is an amenable number.

12701010721 is a deficient number, since it is larger than the sum of its proper divisors (1846762079).

12701010721 is an equidigital number, since it uses as much as digits as its factorization.

12701010721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4041503.

The product of its (nonzero) digits is 196, while the sum is 22.

It can be divided in two parts, 127010 and 10721, that added together give a palindrome (137731).

The spelling of 12701010721 in words is "twelve billion, seven hundred one million, ten thousand, seven hundred twenty-one".