12021275007 has 48 divisors (see below), whose sum is σ = 20355566400. Its totient is φ = 6833369088.

The previous prime is 12021274981. The next prime is 12021275017. The reversal of 12021275007 is 70057212021.

It is not a de Polignac number, because 12021275007 - 2⁷ = 12021274879 is a prime.

It is a super-2 number, since 2×12021275007² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021275017) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 585703 + ... + 605879.

It is an arithmetic number, because the mean of its divisors is an integer number (424074300).

Almost surely, 2^12021275007 is an apocalyptic number.

12021275007 is a deficient number, since it is larger than the sum of its proper divisors (8334291393).

12021275007 is a wasteful number, since it uses less digits than its factorization.

12021275007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20397 (or 20380 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

Adding to 12021275007 its reverse (70057212021), we get a palindrome (82078487028).

The spelling of 12021275007 in words is "twelve billion, twenty-one million, two hundred seventy-five thousand, seven".