1222021110112 has 192 divisors, whose sum is σ = 2718549630720. Its totient is φ = 535917312000.

The previous prime is 1222021110109. The next prime is 1222021110131. The reversal of 1222021110112 is 2110111202221.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1007436418 + ... + 1007437630.

It is an arithmetic number, because the mean of its divisors is an integer number (14159112660).

Almost surely, 2^{1222021110112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222021110112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1359274815360).

1222021110112 is an abundant number, since it is smaller than the sum of its proper divisors (1496528520608).

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

1222021110112 is a wasteful number, since it uses less digits than its factorization.

1222021110112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037 (or 2029 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1222021110112 its reverse (2110111202221), we get a palindrome (3332132312333).

The spelling of 1222021110112 in words is "one trillion, two hundred twenty-two billion, twenty-one million, one hundred ten thousand, one hundred twelve".