112020001221 has 16 divisors (see below), whose sum is σ = 152010752000. Its totient is φ = 73364127408.

The previous prime is 112020001199. The next prime is 112020001253. The reversal of 112020001221 is 122100020211.

It is not a de Polignac number, because 112020001221 - 2⁶ = 112020001157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112020001197 and 112020001206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112020001921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1140421 + ... + 1234746.

It is an arithmetic number, because the mean of its divisors is an integer number (9500672000).

Almost surely, 2^112020001221 is an apocalyptic number.

It is an amenable number.

112020001221 is a deficient number, since it is larger than the sum of its proper divisors (39990750779).

112020001221 is a wasteful number, since it uses less digits than its factorization.

112020001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375448.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 112020001221 its reverse (122100020211), we get a palindrome (234120021432).

The spelling of 112020001221 in words is "one hundred twelve billion, twenty million, one thousand, two hundred twenty-one".