20122404142243 has 16 divisors (see below), whose sum is σ = 21813561133056. Its totient is φ = 18451823703840.

The previous prime is 20122404142241. The next prime is 20122404142301. The reversal of 20122404142243 is 34224140422102.

It is a cyclic number.

It is not a de Polignac number, because 20122404142243 - 2¹ = 20122404142241 is a prime.

It is a super-2 number, since 2×20122404142243² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20122404142241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2223996 + ... + 6722422.

It is an arithmetic number, because the mean of its divisors is an integer number (1363347570816).

Almost surely, 2^{20122404142243} is an apocalyptic number.

20122404142243 is a deficient number, since it is larger than the sum of its proper divisors (1691156990813).

20122404142243 is a wasteful number, since it uses less digits than its factorization.

20122404142243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4500714.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 20122404142243 its reverse (34224140422102), we get a palindrome (54346544564345).

The spelling of 20122404142243 in words is "twenty trillion, one hundred twenty-two billion, four hundred four million, one hundred forty-two thousand, two hundred forty-three".