20450042420222 has 16 divisors (see below), whose sum is σ = 31107278556000. Its totient is φ = 10080951158880.

The previous prime is 20450042420221. The next prime is 20450042420287. The reversal of 20450042420222 is 22202424005402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20450042420221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39346904 + ... + 39863252.

It is an arithmetic number, because the mean of its divisors is an integer number (1944204909750).

Almost surely, 2^{20450042420222} is an apocalyptic number.

20450042420222 is a deficient number, since it is larger than the sum of its proper divisors (10657236135778).

20450042420222 is a wasteful number, since it uses less digits than its factorization.

20450042420222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795331.

The product of its (nonzero) digits is 20480, while the sum is 29.

Adding to 20450042420222 its reverse (22202424005402), we get a palindrome (42652466425624).

The spelling of 20450042420222 in words is "twenty trillion, four hundred fifty billion, forty-two million, four hundred twenty thousand, two hundred twenty-two".