1022221300 has 18 divisors (see below), whose sum is σ = 2218220438. Its totient is φ = 408888480.

The previous prime is 1022221243. The next prime is 1022221301. The reversal of 1022221300 is 31222201.

It can be written as a sum of positive squares in 3 ways, for example, as 26440164 + 995781136 = 5142^2 + 31556^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022221301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5111007 + ... + 5111206.

Almost surely, 2^1022221300 is an apocalyptic number.

1022221300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022221300 is an abundant number, since it is smaller than the sum of its proper divisors (1195999138).

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

1022221300 is a wasteful number, since it uses less digits than its factorization.

1022221300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10222227 (or 10222220 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1022221300 is about 31972.1957331679. The cubic root of 1022221300 is about 1007.3529023156.

Adding to 1022221300 its reverse (31222201), we get a palindrome (1053443501).

Subtracting from 1022221300 its reverse (31222201), we obtain a palindrome (990999099).

The spelling of 1022221300 in words is "one billion, twenty-two million, two hundred twenty-one thousand, three hundred".