22040202042 has 72 divisors (see below), whose sum is σ = 49988510208. Its totient is φ = 7017714000.

The previous prime is 22040202017. The next prime is 22040202047. The reversal of 22040202042 is 24020204022.

22040202042 is a `hidden beast` number, since 220 + 402 + 0 + 2 + 0 + 42 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (22040202047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10958817 + ... + 10960827.

It is an arithmetic number, because the mean of its divisors is an integer number (694284864).

Almost surely, 2^22040202042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22040202042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24994255104).

22040202042 is an abundant number, since it is smaller than the sum of its proper divisors (27948308166).

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

22040202042 is a wasteful number, since it uses less digits than its factorization.

22040202042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3216 (or 3190 counting only the distinct ones).

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

Adding to 22040202042 its reverse (24020204022), we get a palindrome (46060406064).

The spelling of 22040202042 in words is "twenty-two billion, forty million, two hundred two thousand, forty-two".