112021132221 has 20 divisors (see below), whose sum is σ = 168997055964. Its totient is φ = 73941336000.

The previous prime is 112021132219. The next prime is 112021132229. The reversal of 112021132221 is 122231120211.

112021132221 is a `hidden beast` number, since 112 + 0 + 211 + 322 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 98376322500 + 13644809721 = 313650^2 + 116811^2 .

It is not a de Polignac number, because 112021132221 - 2¹ = 112021132219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112021132194 and 112021132203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112021132229) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6838240 + ... + 6854601.

Almost surely, 2^112021132221 is an apocalyptic number.

It is an amenable number.

112021132221 is a deficient number, since it is larger than the sum of its proper divisors (56975923743).

112021132221 is a wasteful number, since it uses less digits than its factorization.

112021132221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13692954 (or 13692945 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 112021132221 its reverse (122231120211), we get a palindrome (234252252432).

The spelling of 112021132221 in words is "one hundred twelve billion, twenty-one million, one hundred thirty-two thousand, two hundred twenty-one".