1012221113221 has 8 divisors (see below), whose sum is σ = 1017876132000. Its totient is φ = 1006566783120.

The previous prime is 1012221113219. The next prime is 1012221113297. The reversal of 1012221113221 is 1223111222101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1012221113221 - 2¹ = 1012221113219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012221117221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2931390 + ... + 3258448.

It is an arithmetic number, because the mean of its divisors is an integer number (127234516500).

Almost surely, 2^{1012221113221} is an apocalyptic number.

It is an amenable number.

1012221113221 is a deficient number, since it is larger than the sum of its proper divisors (5655018779).

1012221113221 is a wasteful number, since it uses less digits than its factorization.

1012221113221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344339.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1012221113221 its reverse (1223111222101), we get a palindrome (2235332335322).

The spelling of 1012221113221 in words is "one trillion, twelve billion, two hundred twenty-one million, one hundred thirteen thousand, two hundred twenty-one".