1222030221 has 8 divisors (see below), whose sum is σ = 1664041344. Its totient is φ = 797352960.

The previous prime is 1222030207. The next prime is 1222030231. The reversal of 1222030221 is 1220302221.

It is a happy number.

1222030221 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1222030221 - 2⁶ = 1222030157 is a prime.

It is a super-2 number, since 2×1222030221² = 2986715722074617682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1222030221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222030231) 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, 4333300 + ... + 4333581.

It is an arithmetic number, because the mean of its divisors is an integer number (208005168).

Almost surely, 2^1222030221 is an apocalyptic number.

It is an amenable number.

1222030221 is a deficient number, since it is larger than the sum of its proper divisors (442011123).

1222030221 is an equidigital number, since it uses as much as digits as its factorization.

1222030221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8666931.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1222030221 is about 34957.5488414162. The cubic root of 1222030221 is about 1069.1221206565.

Adding to 1222030221 its reverse (1220302221), we get a palindrome (2442332442).

Subtracting from 1222030221 its reverse (1220302221), we obtain a cube (1728000 = 120³).

It can be divided in two parts, 1 and 222030221, that added together give a palindrome (222030222).

The spelling of 1222030221 in words is "one billion, two hundred twenty-two million, thirty thousand, two hundred twenty-one".