22240020042 has 32 divisors (see below), whose sum is σ = 49427271360. Its totient is φ = 7412589360.

The previous prime is 22240019959. The next prime is 22240020043. The reversal of 22240020042 is 24002004222.

22240020042 is a `hidden beast` number, since 2 + 22 + 400 + 200 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22240019997 and 22240020024.

It is not an unprimeable number, because it can be changed into a prime (22240020043) 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, 854473 + ... + 880115.

It is an arithmetic number, because the mean of its divisors is an integer number (1544602230).

Almost surely, 2^22240020042 is an apocalyptic number.

22240020042 is an abundant number, since it is smaller than the sum of its proper divisors (27187251318).

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

22240020042 is a wasteful number, since it uses less digits than its factorization.

22240020042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41715 (or 41709 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 22240020042 its reverse (24002004222), we get a palindrome (46242024264).

The spelling of 22240020042 in words is "twenty-two billion, two hundred forty million, twenty thousand, forty-two".