112201212111021 has 24 divisors (see below), whose sum is σ = 177156222516000. Its totient is φ = 67864460565600.

The previous prime is 112201212110983. The next prime is 112201212111059. The reversal of 112201212111021 is 120111212102211.

It is a happy number.

112201212111021 is a `hidden beast` number, since 11 + 220 + 121 + 211 + 102 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (112201212110983) and next prime (112201212111059).

It is not a de Polignac number, because 112201212111021 - 2¹⁹ = 112201211586733 is a prime.

It is a super-2 number, since 2×112201212111021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 112201212110985 and 112201212111003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112201212111071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1135567410 + ... + 1135666211.

It is an arithmetic number, because the mean of its divisors is an integer number (7381509271500).

Almost surely, 2^{112201212111021} is an apocalyptic number.

112201212111021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112201212111021 is a deficient number, since it is larger than the sum of its proper divisors (64955010404979).

112201212111021 is a wasteful number, since it uses less digits than its factorization.

112201212111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271234137 (or 2271234134 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 112201212111021 its reverse (120111212102211), we get a palindrome (232312424213232).

The spelling of 112201212111021 in words is "one hundred twelve trillion, two hundred one billion, two hundred twelve million, one hundred eleven thousand, twenty-one".