10011222 has 48 divisors (see below), whose sum is σ = 24112080. Its totient is φ = 3077568.

The previous prime is 10011203. The next prime is 10011227. The reversal of 10011222 is 22211001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8578 + ... + 9674.

It is an arithmetic number, because the mean of its divisors is an integer number (502335).

Almost surely, 2^10011222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10011222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12056040).

10011222 is an abundant number, since it is smaller than the sum of its proper divisors (14100858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10011222 is a wasteful number, since it uses less digits than its factorization.

10011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 10011222 is about 3164.0515166476. The cubic root of 10011222 is about 215.5240290962.

Adding to 10011222 its reverse (22211001), we get a palindrome (32222223).

The spelling of 10011222 in words is "ten million, eleven thousand, two hundred twenty-two".