221210210001112 has 8 divisors (see below), whose sum is σ = 414769143752100. Its totient is φ = 110605105000552.

The previous prime is 221210210001089. The next prime is 221210210001113. The reversal of 221210210001112 is 211100012012122.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221210210001113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13825638125062 + ... + 13825638125077.

Almost surely, 2^{221210210001112} is an apocalyptic number.

It is an amenable number.

221210210001112 is a deficient number, since it is larger than the sum of its proper divisors (193558933750988).

221210210001112 is a wasteful number, since it uses less digits than its factorization.

221210210001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27651276250145 (or 27651276250141 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221210210001112 its reverse (211100012012122), we get a palindrome (432310222013234).

The spelling of 221210210001112 in words is "two hundred twenty-one trillion, two hundred ten billion, two hundred ten million, one thousand, one hundred twelve".