1022224221 has 24 divisors (see below), whose sum is σ = 1493743680. Its totient is φ = 673572096.

The previous prime is 1022224207. The next prime is 1022224241. The reversal of 1022224221 is 1224222201.

It is not a de Polignac number, because 1022224221 - 2⁶ = 1022224157 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1022224194 and 1022224203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022224241) 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, 860590 + ... + 861776.

It is an arithmetic number, because the mean of its divisors is an integer number (62239320).

Almost surely, 2^1022224221 is an apocalyptic number.

It is an amenable number.

1022224221 is a deficient number, since it is larger than the sum of its proper divisors (471519459).

1022224221 is a wasteful number, since it uses less digits than its factorization.

1022224221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225 (or 2222 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1022224221 is about 31972.2414134511. The cubic root of 1022224221 is about 1007.3538618192.

Adding to 1022224221 its reverse (1224222201), we get a palindrome (2246446422).

It can be divided in two parts, 10222 and 24221, that added together give a palindrome (34443).

The spelling of 1022224221 in words is "one billion, twenty-two million, two hundred twenty-four thousand, two hundred twenty-one".