112101222211221 has 16 divisors (see below), whose sum is σ = 149508736767936. Its totient is φ = 74713930411776.

The previous prime is 112101222211219. The next prime is 112101222211283. The reversal of 112101222211221 is 122112222101211.

It is not a de Polignac number, because 112101222211221 - 2¹ = 112101222211219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112101222211291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182832061 + ... + 183444173.

It is an arithmetic number, because the mean of its divisors is an integer number (9344296047996).

Almost surely, 2^{112101222211221} is an apocalyptic number.

It is an amenable number.

112101222211221 is a deficient number, since it is larger than the sum of its proper divisors (37407514556715).

112101222211221 is a wasteful number, since it uses less digits than its factorization.

112101222211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628532.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 112101222211221 its reverse (122112222101211), we get a palindrome (234213444312432).

The spelling of 112101222211221 in words is "one hundred twelve trillion, one hundred one billion, two hundred twenty-two million, two hundred eleven thousand, two hundred twenty-one".