2222220100000 has 144 divisors (see below), whose sum is σ = 5471791392312. Its totient is φ = 888336000000.

The previous prime is 2222220099997. The next prime is 2222220100031. The reversal of 2222220100000 is 10222222.

It can be written as a sum of positive squares in 12 ways, for example, as 1998502451856 + 223717648144 = 1413684^2 + 472988^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 186094030 + ... + 186105970.

Almost surely, 2^{2222220100000} is an apocalyptic number.

2222220100000 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 2222220100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2735895696156).

2222220100000 is an abundant number, since it is smaller than the sum of its proper divisors (3249571292312).

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

2222220100000 is an equidigital number, since it uses as much as digits as its factorization.

2222220100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13837 (or 13809 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 2222220100000 its reverse (10222222), we get a palindrome (2222230322222).

The spelling of 2222220100000 in words is "two trillion, two hundred twenty-two billion, two hundred twenty million, one hundred thousand".