112220001100021 has 4 divisors (see below), whose sum is σ = 112230882522252. Its totient is φ = 112209119677792.

The previous prime is 112220001099977. The next prime is 112220001100027. The reversal of 112220001100021 is 120001100022211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 83628372971025 + 28591628128996 = 9144855^2 + 5347114^2 .

It is a cyclic number.

It is not a de Polignac number, because 112220001100021 - 2¹⁵ = 112220001067253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112220001099974 and 112220001100010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112220001100027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5440695646 + ... + 5440716271.

It is an arithmetic number, because the mean of its divisors is an integer number (28057720630563).

Almost surely, 2^{112220001100021} is an apocalyptic number.

It is an amenable number.

112220001100021 is a deficient number, since it is larger than the sum of its proper divisors (10881422231).

112220001100021 is a wasteful number, since it uses less digits than its factorization.

112220001100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10881422230.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 112220001100021 its reverse (120001100022211), we get a palindrome (232221101122232).

The spelling of 112220001100021 in words is "one hundred twelve trillion, two hundred twenty billion, one million, one hundred thousand, twenty-one".