222308101 has 4 divisors (see below), whose sum is σ = 222465100. Its totient is φ = 222151104.

The previous prime is 222308083. The next prime is 222308111. The reversal of 222308101 is 101803222.

It is a Cunningham number, because it is equal to 14910²+1.

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 14976900 + 207331201 = 3870^2 + 14399^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222308101 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 (222308111) 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, 76356 + ... + 79213.

It is an arithmetic number, because the mean of its divisors is an integer number (55616275).

Almost surely, 2^222308101 is an apocalyptic number.

It is an amenable number.

222308101 is a deficient number, since it is larger than the sum of its proper divisors (156999).

222308101 is a wasteful number, since it uses less digits than its factorization.

222308101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156998.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 222308101 is about 14910.0000335345. Note that the first 4 decimals coincide. The cubic root of 222308101 is about 605.7848802762.

The spelling of 222308101 in words is "two hundred twenty-two million, three hundred eight thousand, one hundred one".