112020012211221 has 12 divisors (see below), whose sum is σ = 171324724558572. Its totient is φ = 70287066485376.

The previous prime is 112020012211181. The next prime is 112020012211223. The reversal of 112020012211221 is 122112210020211.

112020012211221 is a `hidden beast` number, since 1 + 1 + 20 + 200 + 1 + 221 + 1 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 99992780130321 + 12027232080900 = 9999639^2 + 3468030^2 .

It is not a de Polignac number, because 112020012211221 - 2¹⁵ = 112020012178453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112020012211194 and 112020012211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112020012211223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 366078471126 + ... + 366078471431.

It is an arithmetic number, because the mean of its divisors is an integer number (14277060379881).

Almost surely, 2^{112020012211221} is an apocalyptic number.

It is an amenable number.

112020012211221 is a deficient number, since it is larger than the sum of its proper divisors (59304712347351).

112020012211221 is a wasteful number, since it uses less digits than its factorization.

112020012211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732156942580 (or 732156942577 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 112020012211221 its reverse (122112210020211), we get a palindrome (234132222231432).

The spelling of 112020012211221 in words is "one hundred twelve trillion, twenty billion, twelve million, two hundred eleven thousand, two hundred twenty-one".