112212220201221 has 24 divisors (see below), whose sum is σ = 176494759700544. Its totient is φ = 63218152220160.

The previous prime is 112212220201199. The next prime is 112212220201247. The reversal of 112212220201221 is 122102022212211.

It is not a de Polignac number, because 112212220201221 - 2⁵ = 112212220201189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112212220202221) 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 23 ways as a sum of consecutive naturals, for example, 5375682780 + ... + 5375703653.

It is an arithmetic number, because the mean of its divisors is an integer number (7353948320856).

Almost surely, 2^{112212220201221} is an apocalyptic number.

It is an amenable number.

112212220201221 is a deficient number, since it is larger than the sum of its proper divisors (64282539499323).

112212220201221 is a wasteful number, since it uses less digits than its factorization.

112212220201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10751386521 (or 10751386514 counting only the distinct ones).

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

Adding to 112212220201221 its reverse (122102022212211), we get a palindrome (234314242413432).

The spelling of 112212220201221 in words is "one hundred twelve trillion, two hundred twelve billion, two hundred twenty million, two hundred one thousand, two hundred twenty-one".