112210020111221 has 2 divisors, whose sum is σ = 112210020111222. Its totient is φ = 112210020111220.

The previous prime is 112210020111187. The next prime is 112210020111239. The reversal of 112210020111221 is 122111020012211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65609109003025 + 46600911108196 = 8099945^2 + 6826486^2 .

It is a cyclic number.

It is not a de Polignac number, because 112210020111221 - 2¹⁰ = 112210020110197 is a prime.

It is a super-2 number, since 2×112210020111221² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 112210020111221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112210020111121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56105010055610 + 56105010055611.

It is an arithmetic number, because the mean of its divisors is an integer number (56105010055611).

Almost surely, 2^{112210020111221} is an apocalyptic number.

It is an amenable number.

112210020111221 is a deficient number, since it is larger than the sum of its proper divisors (1).

112210020111221 is an equidigital number, since it uses as much as digits as its factorization.

112210020111221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 112210020111221 its reverse (122111020012211), we get a palindrome (234321040123432).

The spelling of 112210020111221 in words is "one hundred twelve trillion, two hundred ten billion, twenty million, one hundred eleven thousand, two hundred twenty-one".