112102111121221 has 6 divisors (see below), whose sum is σ = 121388676539730. Its totient is φ = 103478871804048.

The previous prime is 112102111121219. The next prime is 112102111121261. The reversal of 112102111121221 is 122121111201211.

It can be written as a sum of positive squares in 3 ways, for example, as 14200763192100 + 97901347929121 = 3768390^2 + 9894511^2 .

It is not a de Polignac number, because 112102111121221 - 2¹ = 112102111121219 is a prime.

It is a super-3 number, since 3×112102111121221³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112102111121201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 331663050486 + ... + 331663050823.

It is an arithmetic number, because the mean of its divisors is an integer number (20231446089955).

Almost surely, 2^{112102111121221} is an apocalyptic number.

It is an amenable number.

112102111121221 is a deficient number, since it is larger than the sum of its proper divisors (9286565418509).

112102111121221 is an equidigital number, since it uses as much as digits as its factorization.

112102111121221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663326101335 (or 663326101322 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 112102111121221 its reverse (122121111201211), we get a palindrome (234223222322432).

The spelling of 112102111121221 in words is "one hundred twelve trillion, one hundred two billion, one hundred eleven million, one hundred twenty-one thousand, two hundred twenty-one".