22111222220000 has 60 divisors (see below), whose sum is σ = 54396923393736. Its totient is φ = 8844488880000.

The previous prime is 22111222219997. The next prime is 22111222220023. The reversal of 22111222220000 is 2222211122.

It is a happy number.

It is a super-2 number, since 2×22111222220000² (a number of 27 digits) contains 22 as substring.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 552760556 + ... + 552800555.

Almost surely, 2^{22111222220000} is an apocalyptic number.

22111222220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111222220000 is an abundant number, since it is smaller than the sum of its proper divisors (32285701173736).

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

22111222220000 is an equidigital number, since it uses as much as digits as its factorization.

22111222220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105561141 (or 1105561118 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22111222220000 its reverse (2222211122), we get a palindrome (22113444431122).

The spelling of 22111222220000 in words is "twenty-two trillion, one hundred eleven billion, two hundred twenty-two million, two hundred twenty thousand".