20122450443 has 12 divisors (see below), whose sum is σ = 29159224848. Its totient is φ = 13371830160.

The previous prime is 20122450423. The next prime is 20122450493. The reversal of 20122450443 is 34405422102.

20122450443 is a `hidden beast` number, since 201 + 2 + 2 + 450 + 4 + 4 + 3 = 666.

It is not a de Polignac number, because 20122450443 - 2¹⁰ = 20122449419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20122450423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3591780 + ... + 3597377.

It is an arithmetic number, because the mean of its divisors is an integer number (2429935404).

Almost surely, 2^20122450443 is an apocalyptic number.

20122450443 is a deficient number, since it is larger than the sum of its proper divisors (9036774405).

20122450443 is a wasteful number, since it uses less digits than its factorization.

20122450443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7189474 (or 7189471 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 20122450443 its reverse (34405422102), we get a palindrome (54527872545).

The spelling of 20122450443 in words is "twenty billion, one hundred twenty-two million, four hundred fifty thousand, four hundred forty-three".