1222110220000 has 120 divisors (see below), whose sum is σ = 3048924119472. Its totient is φ = 481958400000.

The previous prime is 1222110219991. The next prime is 1222110220027. The reversal of 1222110220000 is 220112221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 989680 + ... + 1850320.

Almost surely, 2^{1222110220000} is an apocalyptic number.

1222110220000 is a gapful number since it is divisible by the number (10) 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 1222110220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1524462059736).

1222110220000 is an abundant number, since it is smaller than the sum of its proper divisors (1826813899472).

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

1222110220000 is an frugal number, since it uses more digits than its factorization.

1222110220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860742 (or 860719 counting only the distinct ones).

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

Adding to 1222110220000 its reverse (220112221), we get a palindrome (1222330332221).

The spelling of 1222110220000 in words is "one trillion, two hundred twenty-two billion, one hundred ten million, two hundred twenty thousand".