20422422224042 has 4 divisors (see below), whose sum is σ = 30633633336066. Its totient is φ = 10211211112020.

The previous prime is 20422422224041. The next prime is 20422422224051. The reversal of 20422422224042 is 24042222422402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16830908297401 + 3591513926641 = 4102549^2 + 1895129^2 .

It is not an unprimeable number, because it can be changed into a prime (20422422224041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105605556009 + ... + 5105605556012.

Almost surely, 2^{20422422224042} is an apocalyptic number.

20422422224042 is a deficient number, since it is larger than the sum of its proper divisors (10211211112024).

20422422224042 is a wasteful number, since it uses less digits than its factorization.

20422422224042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10211211112023.

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 20422422224042 its reverse (24042222422402), we get a palindrome (44464644646444).

The spelling of 20422422224042 in words is "twenty trillion, four hundred twenty-two billion, four hundred twenty-two million, two hundred twenty-four thousand, forty-two".