20013222542 has 8 divisors (see below), whose sum is σ = 30103455600. Its totient is φ = 9978737344.

The previous prime is 20013222533. The next prime is 20013222563. The reversal of 20013222542 is 24522231002.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13936067 + ... + 13937502.

It is an arithmetic number, because the mean of its divisors is an integer number (3762931950).

Almost surely, 2^20013222542 is an apocalyptic number.

20013222542 is a deficient number, since it is larger than the sum of its proper divisors (10090233058).

20013222542 is a wasteful number, since it uses less digits than its factorization.

20013222542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27873930.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 20013222542 its reverse (24522231002), we get a palindrome (44535453544).

The spelling of 20013222542 in words is "twenty billion, thirteen million, two hundred twenty-two thousand, five hundred forty-two".