222242424420 has 48 divisors (see below), whose sum is σ = 622750076928. Its totient is φ = 59219761920.

The previous prime is 222242424409. The next prime is 222242424421. The reversal of 222242424420 is 24424242222.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (222242424421) 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, 1322724 + ... + 1481243.

It is an arithmetic number, because the mean of its divisors is an integer number (12973959936).

Almost surely, 2^222242424420 is an apocalyptic number.

222242424420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222242424420 is an abundant number, since it is smaller than the sum of its proper divisors (400507652508).

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

222242424420 is a wasteful number, since it uses less digits than its factorization.

222242424420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2805300 (or 2805298 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 222242424420 its reverse (24424242222), we get a palindrome (246666666642).

The spelling of 222242424420 in words is "two hundred twenty-two billion, two hundred forty-two million, four hundred twenty-four thousand, four hundred twenty".