222112101 has 4 divisors (see below), whose sum is σ = 296149472. Its totient is φ = 148074732.

The previous prime is 222112087. The next prime is 222112141. The reversal of 222112101 is 101211222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 222112101 - 2⁷ = 222111973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222112141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37018681 + ... + 37018686.

It is an arithmetic number, because the mean of its divisors is an integer number (74037368).

Almost surely, 2^222112101 is an apocalyptic number.

It is an amenable number.

222112101 is a deficient number, since it is larger than the sum of its proper divisors (74037371).

222112101 is an equidigital number, since it uses as much as digits as its factorization.

222112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74037370.

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

The square root of 222112101 is about 14903.4258142214. The cubic root of 222112101 is about 605.6067959758.

Adding to 222112101 its reverse (101211222), we get a palindrome (323323323).

The spelling of 222112101 in words is "two hundred twenty-two million, one hundred twelve thousand, one hundred one".