20000420022 has 64 divisors (see below), whose sum is σ = 44146384128. Its totient is φ = 5990400000.

The previous prime is 20000420003. The next prime is 20000420051. The reversal of 20000420022 is 22002400002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2217522 + ... + 2226522.

It is an arithmetic number, because the mean of its divisors is an integer number (689787252).

Almost surely, 2^20000420022 is an apocalyptic number.

20000420022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20000420022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22073192064).

20000420022 is an abundant number, since it is smaller than the sum of its proper divisors (24145964106).

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

20000420022 is a wasteful number, since it uses less digits than its factorization.

20000420022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9405.

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 20000420022 its reverse (22002400002), we get a palindrome (42002820024).

The spelling of 20000420022 in words is "twenty billion, four hundred twenty thousand, twenty-two".