2221122010000 has 50 divisors (see below), whose sum is σ = 5377558522622. Its totient is φ = 888448800000.

The previous prime is 2221122009949. The next prime is 2221122010027. The reversal of 2221122010000 is 102211222.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 419556743824 + 1801565266176 = 647732^2 + 1342224^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 111046101 + ... + 111066100.

Almost surely, 2^{2221122010000} is an apocalyptic number.

2221122010000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221122010000 is an abundant number, since it is smaller than the sum of its proper divisors (3156436512622).

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

2221122010000 is an equidigital number, since it uses as much as digits as its factorization.

2221122010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222112229 (or 222112208 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2221122010000 its reverse (102211222), we get a palindrome (2221224221222).

The spelling of 2221122010000 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-two million, ten thousand".