222210103310021 has 4 divisors (see below), whose sum is σ = 222210146576652. Its totient is φ = 222210060043392.

The previous prime is 222210103309951. The next prime is 222210103310023. The reversal of 222210103310021 is 120013301012222.

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 161337120441025 + 60872982868996 = 12701855^2 + 7802114^2 .

It is a cyclic number.

It is not a de Polignac number, because 222210103310021 - 2⁴⁶ = 151841359132357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222210103309975 and 222210103310002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222210103310023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12699890 + ... + 24611123.

It is an arithmetic number, because the mean of its divisors is an integer number (55552536644163).

Almost surely, 2^{222210103310021} is an apocalyptic number.

It is an amenable number.

222210103310021 is a deficient number, since it is larger than the sum of its proper divisors (43266631).

222210103310021 is an equidigital number, since it uses as much as digits as its factorization.

222210103310021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43266630.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 222210103310021 its reverse (120013301012222), we get a palindrome (342223404322243).

The spelling of 222210103310021 in words is "two hundred twenty-two trillion, two hundred ten billion, one hundred three million, three hundred ten thousand, twenty-one".