112221011212021 has 8 divisors (see below), whose sum is σ = 118140744737600. Its totient is φ = 106302614137920.

The previous prime is 112221011212003. The next prime is 112221011212043. The reversal of 112221011212021 is 120212110122211.

It is a happy number.

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 112221011212021 - 2¹¹ = 112221011209973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112221011212021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112221011212001) 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, 333940500 + ... + 334276381.

It is an arithmetic number, because the mean of its divisors is an integer number (14767593092200).

Almost surely, 2^{112221011212021} is an apocalyptic number.

It is an amenable number.

112221011212021 is a deficient number, since it is larger than the sum of its proper divisors (5919733525579).

112221011212021 is an equidigital number, since it uses as much as digits as its factorization.

112221011212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668225739.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 112221011212021 its reverse (120212110122211), we get a palindrome (232433121334232).

The spelling of 112221011212021 in words is "one hundred twelve trillion, two hundred twenty-one billion, eleven million, two hundred twelve thousand, twenty-one".