20422123420040 has 32 divisors (see below), whose sum is σ = 47432028591360. Its totient is φ = 7905338097600.

The previous prime is 20422123420001. The next prime is 20422123420103. The reversal of 20422123420040 is 4002432122402.

It is a junction number, because it is equal to n+sod(n) for n = 20422123419991 and 20422123420009.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8234725946 + ... + 8234728425.

It is an arithmetic number, because the mean of its divisors is an integer number (1482250893480).

Almost surely, 2^{20422123420040} is an apocalyptic number.

20422123420040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20422123420040 is an abundant number, since it is smaller than the sum of its proper divisors (27009905171320).

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

20422123420040 is a wasteful number, since it uses less digits than its factorization.

20422123420040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16469454413 (or 16469454409 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 20422123420040 its reverse (4002432122402), we get a palindrome (24424555542442).

The spelling of 20422123420040 in words is "twenty trillion, four hundred twenty-two billion, one hundred twenty-three million, four hundred twenty thousand, forty".