12020214643 has 2 divisors, whose sum is σ = 12020214644. Its totient is φ = 12020214642.

The previous prime is 12020214631. The next prime is 12020214671. The reversal of 12020214643 is 34641202021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12020214643 - 2²⁵ = 11986660211 is a prime.

It is not a weakly prime, because it can be changed into another prime (12020214673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010107321 + 6010107322.

It is an arithmetic number, because the mean of its divisors is an integer number (6010107322).

Almost surely, 2^12020214643 is an apocalyptic number.

12020214643 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020214643 is an equidigital number, since it uses as much as digits as its factorization.

12020214643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 12020214643 its reverse (34641202021), we get a palindrome (46661416664).

The spelling of 12020214643 in words is "twelve billion, twenty million, two hundred fourteen thousand, six hundred forty-three".