222240400040 has 32 divisors (see below), whose sum is σ = 526358844000. Its totient is φ = 84217414464.

The previous prime is 222240400033. The next prime is 222240400043. The reversal of 222240400040 is 40004042222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 222240399985 and 222240400021.

It is not an unprimeable number, because it can be changed into a prime (222240400043) 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, 146210030 + ... + 146211549.

It is an arithmetic number, because the mean of its divisors is an integer number (16448713875).

Almost surely, 2^222240400040 is an apocalyptic number.

222240400040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222240400040 is an abundant number, since it is smaller than the sum of its proper divisors (304118443960).

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

222240400040 is a wasteful number, since it uses less digits than its factorization.

222240400040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292421609 (or 292421605 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 222240400040 its reverse (40004042222), we get a palindrome (262244442262).

The spelling of 222240400040 in words is "two hundred twenty-two billion, two hundred forty million, four hundred thousand, forty".