20201224042 has 8 divisors (see below), whose sum is σ = 31896669600. Its totient is φ = 9569000844.

The previous prime is 20201224039. The next prime is 20201224097. The reversal of 20201224042 is 24042210202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 265805542 + ... + 265805617.

It is an arithmetic number, because the mean of its divisors is an integer number (3987083700).

Almost surely, 2^20201224042 is an apocalyptic number.

20201224042 is a deficient number, since it is larger than the sum of its proper divisors (11695445558).

20201224042 is a wasteful number, since it uses less digits than its factorization.

20201224042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531611180.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 20201224042 its reverse (24042210202), we get a palindrome (44243434244).

The spelling of 20201224042 in words is "twenty billion, two hundred one million, two hundred twenty-four thousand, forty-two".