10022220221 has 8 divisors (see below), whose sum is σ = 10795448664. Its totient is φ = 9249318720.

The previous prime is 10022220209. The next prime is 10022220233. The reversal of 10022220221 is 12202222001.

It is an interprime number because it is at equal distance from previous prime (10022220209) and next prime (10022220233).

It can be written as a sum of positive squares in 4 ways, for example, as 64176121 + 9958044100 = 8011^2 + 99790^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10022220221 - 2⁶ = 10022220157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10022220196 and 10022220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10022220251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16106 + ... + 142491.

It is an arithmetic number, because the mean of its divisors is an integer number (1349431083).

Almost surely, 2^10022220221 is an apocalyptic number.

It is an amenable number.

10022220221 is a deficient number, since it is larger than the sum of its proper divisors (773228443).

10022220221 is a wasteful number, since it uses less digits than its factorization.

10022220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163471.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 10022220221 its reverse (12202222001), we get a palindrome (22224442222).

The spelling of 10022220221 in words is "ten billion, twenty-two million, two hundred twenty thousand, two hundred twenty-one".