222111331200020 has 48 divisors (see below), whose sum is σ = 472078664688960. Its totient is φ = 87769433523456.

The previous prime is 222111331200013. The next prime is 222111331200107. The reversal of 222111331200020 is 20002133111222.

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 = 222111331199965 and 222111331200001.

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, 27636491 + ... + 34756269.

It is an arithmetic number, because the mean of its divisors is an integer number (9834972181020).

Almost surely, 2^{222111331200020} is an apocalyptic number.

222111331200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222111331200020 is an abundant number, since it is smaller than the sum of its proper divisors (249967333488940).

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

222111331200020 is a wasteful number, since it uses less digits than its factorization.

222111331200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7138664 (or 7138662 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 222111331200020 its reverse (20002133111222), we get a palindrome (242113464311242).

The spelling of 222111331200020 in words is "two hundred twenty-two trillion, one hundred eleven billion, three hundred thirty-one million, two hundred thousand, twenty".