20522221042 has 8 divisors (see below), whose sum is σ = 31004794800. Its totient is φ = 10187289444.

The previous prime is 20522221037. The next prime is 20522221147. The reversal of 20522221042 is 24012222502.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 36910192 + ... + 36910747.

It is an arithmetic number, because the mean of its divisors is an integer number (3875599350).

Almost surely, 2^20522221042 is an apocalyptic number.

20522221042 is a deficient number, since it is larger than the sum of its proper divisors (10482573758).

20522221042 is a wasteful number, since it uses less digits than its factorization.

20522221042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73821080.

The product of its (nonzero) digits is 1280, while the sum is 22.

Adding to 20522221042 its reverse (24012222502), we get a palindrome (44534443544).

The spelling of 20522221042 in words is "twenty billion, five hundred twenty-two million, two hundred twenty-one thousand, forty-two".