2012221021120 has 112 divisors (see below), whose sum is σ = 4976517685248. Its totient is φ = 774144967680.

The previous prime is 2012221021103. The next prime is 2012221021141. The reversal of 2012221021120 is 211201222102.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2012221021094 and 2012221021103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 994737 + ... + 2239183.

Almost surely, 2^{2012221021120} is an apocalyptic number.

2012221021120 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 2012221021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2488258842624).

2012221021120 is an abundant number, since it is smaller than the sum of its proper divisors (2964296664128).

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

2012221021120 is a wasteful number, since it uses less digits than its factorization.

2012221021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244658 (or 1244648 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2012221021120 its reverse (211201222102), we get a palindrome (2223422243222).

The spelling of 2012221021120 in words is "two trillion, twelve billion, two hundred twenty-one million, twenty-one thousand, one hundred twenty".