221112022 has 4 divisors (see below), whose sum is σ = 331668036. Its totient is φ = 110556010.

The previous prime is 221112019. The next prime is 221112029. The reversal of 221112022 is 220211122.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 221111993 and 221112011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221112029) 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 as a sum of consecutive naturals, namely, 55278004 + ... + 55278007.

It is an arithmetic number, because the mean of its divisors is an integer number (82917009).

Almost surely, 2^221112022 is an apocalyptic number.

221112022 is a deficient number, since it is larger than the sum of its proper divisors (110556014).

221112022 is a wasteful number, since it uses less digits than its factorization.

221112022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110556013.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 221112022 is about 14869.8359775755. The cubic root of 221112022 is about 604.6964959951.

Adding to 221112022 its reverse (220211122), we get a palindrome (441323144).

The spelling of 221112022 in words is "two hundred twenty-one million, one hundred twelve thousand, twenty-two".