112221201222021 has 32 divisors (see below), whose sum is σ = 161852311738368. Its totient is φ = 68976533102400.

The previous prime is 112221201221923. The next prime is 112221201222043. The reversal of 112221201222021 is 120222102122211.

It is not a de Polignac number, because 112221201222021 - 2¹⁸ = 112221200959877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112221201222521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205131505 + ... + 205677846.

It is an arithmetic number, because the mean of its divisors is an integer number (5057884741824).

Almost surely, 2^{112221201222021} is an apocalyptic number.

It is an amenable number.

112221201222021 is a deficient number, since it is larger than the sum of its proper divisors (49631110516347).

112221201222021 is a wasteful number, since it uses less digits than its factorization.

112221201222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410809521.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 112221201222021 its reverse (120222102122211), we get a palindrome (232443303344232).

The spelling of 112221201222021 in words is "one hundred twelve trillion, two hundred twenty-one billion, two hundred one million, two hundred twenty-two thousand, twenty-one".