1022220200 has 96 divisors (see below), whose sum is σ = 2578194360. Its totient is φ = 375398400.

The previous prime is 1022220167. The next prime is 1022220223. The reversal of 1022220200 is 20222201.

It can be written as a sum of positive squares in 12 ways, for example, as 55383364 + 966836836 = 7442^2 + 31094^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135734 + ... + 143066.

Almost surely, 2^1022220200 is an apocalyptic number.

1022220200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022220200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1289097180).

1022220200 is an abundant number, since it is smaller than the sum of its proper divisors (1555974160).

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

1022220200 is a wasteful number, since it uses less digits than its factorization.

1022220200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7407 (or 7398 counting only the distinct ones).

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

The square root of 1022220200 is about 31972.1785307164. The cubic root of 1022220200 is about 1007.3525409820.

Adding to 1022220200 its reverse (20222201), we get a palindrome (1042442401).

The spelling of 1022220200 in words is "one billion, twenty-two million, two hundred twenty thousand, two hundred".