12020000022021 has 8 divisors (see below), whose sum is σ = 16044259089024. Its totient is φ = 8004537151520.

The previous prime is 12020000021989. The next prime is 12020000022067. The reversal of 12020000022021 is 12022000002021.

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 12020000022021 - 2⁵ = 12020000021989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12020000021988 and 12020000022006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020000022221) 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, 2199045936 + ... + 2199051401.

It is an arithmetic number, because the mean of its divisors is an integer number (2005532386128).

Almost surely, 2^{12020000022021} is an apocalyptic number.

It is an amenable number.

12020000022021 is a deficient number, since it is larger than the sum of its proper divisors (4024259067003).

12020000022021 is an equidigital number, since it uses as much as digits as its factorization.

12020000022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4398098251.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12020000022021 its reverse (12022000002021), we get a palindrome (24042000024042).

It can be divided in two parts, 120200000 and 22021, that added together give a palindrome (120222021).

The spelling of 12020000022021 in words is "twelve trillion, twenty billion, twenty-two thousand, twenty-one".