10222220 has 12 divisors (see below), whose sum is σ = 21466704. Its totient is φ = 4088880.

The previous prime is 10222213. The next prime is 10222229. The reversal of 10222220 is 2222201.

It is not an unprimeable number, because it can be changed into a prime (10222229) 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, 255536 + ... + 255575.

It is an arithmetic number, because the mean of its divisors is an integer number (1788892).

Almost surely, 2^10222220 is an apocalyptic number.

10222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10222220 is an abundant number, since it is smaller than the sum of its proper divisors (11244484).

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

10222220 is a wasteful number, since it uses less digits than its factorization.

10222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511120 (or 511118 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 10222220 is about 3197.2206680178. The cubic root of 10222220 is about 217.0276533242.

Adding to 10222220 its reverse (2222201), we get a palindrome (12444421).

It can be divided in two parts, 102 and 22220, that added together give a palindrome (22322).

The spelling of 10222220 in words is "ten million, two hundred twenty-two thousand, two hundred twenty".