222042404420 has 24 divisors (see below), whose sum is σ = 469149725184. Its totient is φ = 88272071136.

The previous prime is 222042404383. The next prime is 222042404431. The reversal of 222042404420 is 24404240222.

It is a super-2 number, since 2×222042404420² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222042404420.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 34052324 + ... + 34058843.

It is an arithmetic number, because the mean of its divisors is an integer number (19547905216).

Almost surely, 2^222042404420 is an apocalyptic number.

222042404420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222042404420 is an abundant number, since it is smaller than the sum of its proper divisors (247107320764).

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

222042404420 is a wasteful number, since it uses less digits than its factorization.

222042404420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68111339 (or 68111337 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 222042404420 its reverse (24404240222), we get a palindrome (246446644642).

The spelling of 222042404420 in words is "two hundred twenty-two billion, forty-two million, four hundred four thousand, four hundred twenty".