22220000000000 has 528 divisors, whose sum is σ = 61185057340680. Its totient is φ = 8000000000000.

The previous prime is 22219999999973. The next prime is 22220000000057. The reversal of 22220000000000 is 2222.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 43 ways as a sum of consecutive naturals, for example, 219999999950 + ... + 220000000050.

Almost surely, 2^{22220000000000} is an apocalyptic number.

22220000000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22220000000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30592528670340).

22220000000000 is an abundant number, since it is smaller than the sum of its proper divisors (38965057340680).

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

22220000000000 is an frugal number, since it uses more digits than its factorization.

22220000000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

Adding to 22220000000000 its reverse (2222), we get a palindrome (22220000002222).

22220000000000 divided by its reverse (2222) gives a 10-th power (10000000000 = 10¹⁰).

It can be divided in two parts, 22 and 220000000000, that multiplied together give a square (4840000000000 = 2200000²).

The spelling of 22220000000000 in words is "twenty-two trillion, two hundred twenty billion", and thus it is an aban number.