10022112221 has 32 divisors (see below), whose sum is σ = 11838960000. Its totient is φ = 8410871040.

The previous prime is 10022112209. The next prime is 10022112223. The reversal of 10022112221 is 12221122001.

It is a de Polignac number, because none of the positive numbers 2^k-10022112221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10022112196 and 10022112205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10022112223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2862530 + ... + 2866028.

It is an arithmetic number, because the mean of its divisors is an integer number (369967500).

Almost surely, 2^10022112221 is an apocalyptic number.

10022112221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10022112221 is a deficient number, since it is larger than the sum of its proper divisors (1816847779).

10022112221 is an equidigital number, since it uses as much as digits as its factorization.

10022112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3614 (or 3580 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10022112221 its reverse (12221122001), we get a palindrome (22243234222).

The spelling of 10022112221 in words is "ten billion, twenty-two million, one hundred twelve thousand, two hundred twenty-one".