221010111002112 has 80 divisors (see below), whose sum is σ = 592310406707712. Its totient is φ = 73228898969600.

The previous prime is 221010111002111. The next prime is 221010111002141. The reversal of 221010111002112 is 211200111010122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221010111002091 and 221010111002100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221010111002111) 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, 430542264 + ... + 431055287.

Almost surely, 2^{221010111002112} is an apocalyptic number.

It is an amenable number.

221010111002112 is an abundant number, since it is smaller than the sum of its proper divisors (371300295705600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221010111002112 is an equidigital number, since it uses as much as digits as its factorization.

221010111002112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861597739 (or 861597723 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 221010111002112 its reverse (211200111010122), we get a palindrome (432210222012234).

The spelling of 221010111002112 in words is "two hundred twenty-one trillion, ten billion, one hundred eleven million, two thousand, one hundred twelve".