20120022143 has 16 divisors (see below), whose sum is σ = 22495915680. Its totient is φ = 17867074176.

The previous prime is 20120022073. The next prime is 20120022151. The reversal of 20120022143 is 34122002102.

It is a cyclic number.

It is not a de Polignac number, because 20120022143 - 2²⁸ = 19851586687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120025143) 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 15 ways as a sum of consecutive naturals, for example, 8096 + ... + 200762.

It is an arithmetic number, because the mean of its divisors is an integer number (1405994730).

Almost surely, 2^20120022143 is an apocalyptic number.

20120022143 is a deficient number, since it is larger than the sum of its proper divisors (2375893537).

20120022143 is a wasteful number, since it uses less digits than its factorization.

20120022143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192986.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20120022143 its reverse (34122002102), we get a palindrome (54242024245).

The spelling of 20120022143 in words is "twenty billion, one hundred twenty million, twenty-two thousand, one hundred forty-three".