222300312021 has 12 divisors (see below), whose sum is σ = 321115097472.
Its totient is φ = 148193447976.
The previous prime is 222300312019. The next prime is 222300312067. The reversal of 222300312021 is 120213003222.
222300312021 is a `hidden beast` number, since 222 + 300 + 3 + 120 + 21 = 666.
It is not a de Polignac number, because 222300312021 - 21 = 222300312019 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 222300311985 and 222300312003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (222300312121) 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 in 11 ways as a sum of consecutive naturals, for example, 350851 + ... + 753456.
It is an arithmetic number, because the mean of its divisors is an integer number (26759591456).
Almost surely, 2222300312021 is an apocalyptic number.
It is an amenable number.
222300312021 is a deficient number, since it is larger than the sum of its proper divisors (98814785451).
222300312021 is a wasteful number, since it uses less digits than its factorization.
222300312021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1126680 (or 1126677 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 222300312021 its reverse (120213003222), we get a palindrome (342513315243).
The spelling of 222300312021 in words is "two hundred twenty-two billion, three hundred million, three hundred twelve thousand, twenty-one".