20021212020143 has 2 divisors, whose sum is σ = 20021212020144. Its totient is φ = 20021212020142.

The previous prime is 20021212020071. The next prime is 20021212020217. The reversal of 20021212020143 is 34102021212002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20021212020143 - 2³⁴ = 20004032150959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20021212020343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010606010071 + 10010606010072.

It is an arithmetic number, because the mean of its divisors is an integer number (10010606010072).

Almost surely, 2^{20021212020143} is an apocalyptic number.

20021212020143 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021212020143 is an equidigital number, since it uses as much as digits as its factorization.

20021212020143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20021212020143 its reverse (34102021212002), we get a palindrome (54123233232145).

The spelling of 20021212020143 in words is "twenty trillion, twenty-one billion, two hundred twelve million, twenty thousand, one hundred forty-three".