222222000000020 has 48 divisors (see below), whose sum is σ = 468719625024000. Its totient is φ = 88497831502080.

The previous prime is 222221999999983. The next prime is 222222000000047. The reversal of 222222000000020 is 20000000222222.

It is a happy number.

It is a super-4 number, since 4×222222000000020⁴ (a number of 58 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222221999999941 and 222222000000004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17222225 + ... + 27222215.

It is an arithmetic number, because the mean of its divisors is an integer number (9764992188000).

Almost surely, 2^{222222000000020} is an apocalyptic number.

222222000000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222222000000020 is an abundant number, since it is smaller than the sum of its proper divisors (246497625023980).

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

222222000000020 is a wasteful number, since it uses less digits than its factorization.

222222000000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10004888 (or 10004886 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 222222000000020 its reverse (20000000222222), we get a palindrome (242222000222242).

The spelling of 222222000000020 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, twenty", and thus it is an aban number.