12370170021 has 16 divisors (see below), whose sum is σ = 18061401600. Its totient is φ = 7468561520.

The previous prime is 12370169989. The next prime is 12370170067. The reversal of 12370170021 is 12007107321.

It is a cyclic number.

It is not a de Polignac number, because 12370170021 - 2⁵ = 12370169989 is a prime.

It is a super-2 number, since 2×12370170021² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12370169973 and 12370170000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12370175021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 703971 + ... + 721328.

It is an arithmetic number, because the mean of its divisors is an integer number (1128837600).

Almost surely, 2^12370170021 is an apocalyptic number.

12370170021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12370170021 is a deficient number, since it is larger than the sum of its proper divisors (5691231579).

12370170021 is a wasteful number, since it uses less digits than its factorization.

12370170021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425576.

The product of its (nonzero) digits is 588, while the sum is 24.

Adding to 12370170021 its reverse (12007107321), we get a palindrome (24377277342).

The spelling of 12370170021 in words is "twelve billion, three hundred seventy million, one hundred seventy thousand, twenty-one".