220022222210021 has 16 divisors (see below), whose sum is σ = 290449503423360. Its totient is φ = 161360835233280.

The previous prime is 220022222209997. The next prime is 220022222210083. The reversal of 220022222210021 is 120012222220022.

It is a cyclic number.

It is not a de Polignac number, because 220022222210021 - 2¹⁴ = 220022222193637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220022222209975 and 220022222210002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220022222210221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84042100376 + ... + 84042102993.

It is an arithmetic number, because the mean of its divisors is an integer number (18153093963960).

Almost surely, 2^{220022222210021} is an apocalyptic number.

It is an amenable number.

220022222210021 is a deficient number, since it is larger than the sum of its proper divisors (70427281213339).

220022222210021 is a wasteful number, since it uses less digits than its factorization.

220022222210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168084203404.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 220022222210021 its reverse (120012222220022), we get a palindrome (340034444430043).

The spelling of 220022222210021 in words is "two hundred twenty trillion, twenty-two billion, two hundred twenty-two million, two hundred ten thousand, twenty-one".