12000022000021 has 8 divisors (see below), whose sum is σ = 13177628013888. Its totient is φ = 10836865140000.

The previous prime is 12000022000009. The next prime is 12000022000027.

12000022000021 is nontrivially palindromic in base 10.

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 12000022000021 - 2¹⁵ = 12000021967253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000021999971 and 12000022000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000022000027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3612286720 + ... + 3612290041.

It is an arithmetic number, because the mean of its divisors is an integer number (1647203501736).

Almost surely, 2^{12000022000021} is an apocalyptic number.

12000022000021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12000022000021 is a deficient number, since it is larger than the sum of its proper divisors (1177606013867).

12000022000021 is a wasteful number, since it uses less digits than its factorization.

12000022000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7224576923.

The product of its (nonzero) digits is 16, while the sum is 10.

It can be divided in two parts, 1200002 and 2000021, that multiplied together give a palindrome (2400029200042).

The spelling of 12000022000021 in words is "twelve trillion, twenty-two million, twenty-one", and thus it is an aban number and an uban number.