2221111220000 has 240 divisors, whose sum is σ = 5509589766912. Its totient is φ = 881109120000.

The previous prime is 2221111219993. The next prime is 2221111220017. The reversal of 2221111220000 is 221111222.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1413819215 + ... + 1413820785.

Almost surely, 2^{2221111220000} is an apocalyptic number.

2221111220000 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 2221111220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2754794883456).

2221111220000 is an abundant number, since it is smaller than the sum of its proper divisors (3288478546912).

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

2221111220000 is a wasteful number, since it uses less digits than its factorization.

2221111220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141 (or 2118 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2221111220000 its reverse (221111222), we get a palindrome (2221332331222).

The spelling of 2221111220000 in words is "two trillion, two hundred twenty-one billion, one hundred eleven million, two hundred twenty thousand".