20522120415342 has 64 divisors (see below), whose sum is σ = 50575211420160. Its totient is φ = 5406082072704.

The previous prime is 20522120415341. The next prime is 20522120415389. The reversal of 20522120415342 is 24351402122502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20522120415341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21566092 + ... + 22497567.

It is an arithmetic number, because the mean of its divisors is an integer number (790237678440).

Almost surely, 2^{20522120415342} is an apocalyptic number.

20522120415342 is an abundant number, since it is smaller than the sum of its proper divisors (30053091004818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20522120415342 is a wasteful number, since it uses less digits than its factorization.

20522120415342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44064537.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 20522120415342 its reverse (24351402122502), we get a palindrome (44873522537844).

The spelling of 20522120415342 in words is "twenty trillion, five hundred twenty-two billion, one hundred twenty million, four hundred fifteen thousand, three hundred forty-two".