20042221535004 has 48 divisors (see below), whose sum is σ = 47024143187616. Its totient is φ = 6643846406400.

The previous prime is 20042221534961. The next prime is 20042221535009. The reversal of 20042221535004 is 40053512224002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20042221535009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4655907 + ... + 7858874.

It is an arithmetic number, because the mean of its divisors is an integer number (979669649742).

Almost surely, 2^{20042221535004} is an apocalyptic number.

It is an amenable number.

20042221535004 is an abundant number, since it is smaller than the sum of its proper divisors (26981921652612).

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

20042221535004 is a wasteful number, since it uses less digits than its factorization.

20042221535004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12515526 (or 12515524 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 20042221535004 its reverse (40053512224002), we get a palindrome (60095733759006).

The spelling of 20042221535004 in words is "twenty trillion, forty-two billion, two hundred twenty-one million, five hundred thirty-five thousand, four".