222110220122213 has 4 divisors (see below), whose sum is σ = 222546585977580. Its totient is φ = 221673854266848.

The previous prime is 222110220122129. The next prime is 222110220122237. The reversal of 222110220122213 is 312221022011222.

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 192279212124484 + 29831007997729 = 13866478^2 + 5461777^2 .

It is a cyclic number.

It is not a de Polignac number, because 222110220122213 - 2²² = 222110215927909 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 (222110220122513) 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, 218182926920 + ... + 218182927937.

It is an arithmetic number, because the mean of its divisors is an integer number (55636646494395).

Almost surely, 2^{222110220122213} is an apocalyptic number.

It is an amenable number.

222110220122213 is a deficient number, since it is larger than the sum of its proper divisors (436365855367).

222110220122213 is an equidigital number, since it uses as much as digits as its factorization.

222110220122213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436365855366.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 222110220122213 its reverse (312221022011222), we get a palindrome (534331242133435).

The spelling of 222110220122213 in words is "two hundred twenty-two trillion, one hundred ten billion, two hundred twenty million, one hundred twenty-two thousand, two hundred thirteen".