112222100221 has 64 divisors (see below), whose sum is σ = 151670292480. Its totient is φ = 80362368000.

The previous prime is 112222100209. The next prime is 112222100279. The reversal of 112222100221 is 122001222211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 112222100221 - 2⁵ = 112222100189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112222100195 and 112222100204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112222100521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11093956 + ... + 11104066.

It is an arithmetic number, because the mean of its divisors is an integer number (2369848320).

Almost surely, 2^112222100221 is an apocalyptic number.

112222100221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112222100221 is a deficient number, since it is larger than the sum of its proper divisors (39448192259).

112222100221 is a wasteful number, since it uses less digits than its factorization.

112222100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10346.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 112222100221 its reverse (122001222211), we get a palindrome (234223322432).

The spelling of 112222100221 in words is "one hundred twelve billion, two hundred twenty-two million, one hundred thousand, two hundred twenty-one".