222242101 has 4 divisors (see below), whose sum is σ = 223087392. Its totient is φ = 221396812.

The previous prime is 222242087. The next prime is 222242113. The reversal of 222242101 is 101242222.

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 a cyclic number.

It is not a de Polignac number, because 222242101 - 2⁷ = 222241973 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 (222243101) 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, 422251 + ... + 422776.

It is an arithmetic number, because the mean of its divisors is an integer number (55771848).

Almost surely, 2^222242101 is an apocalyptic number.

It is an amenable number.

222242101 is a deficient number, since it is larger than the sum of its proper divisors (845291).

222242101 is an equidigital number, since it uses as much as digits as its factorization.

222242101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845290.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 222242101 is about 14907.7865895645. The cubic root of 222242101 is about 605.7249248071.

Adding to 222242101 its reverse (101242222), we get a palindrome (323484323).

The spelling of 222242101 in words is "two hundred twenty-two million, two hundred forty-two thousand, one hundred one".