1022200209 has 32 divisors (see below), whose sum is σ = 1598198400. Its totient is φ = 643930560.

The previous prime is 1022200141. The next prime is 1022200219. The reversal of 1022200209 is 9020022201.

It is not a de Polignac number, because 1022200209 - 2¹⁵ = 1022167441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1022200191 and 1022200200.

It is not an unprimeable number, because it can be changed into a prime (1022200219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 213607 + ... + 218339.

It is an arithmetic number, because the mean of its divisors is an integer number (49943700).

Almost surely, 2^1022200209 is an apocalyptic number.

1022200209 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1022200209 is a deficient number, since it is larger than the sum of its proper divisors (575998191).

1022200209 is a wasteful number, since it uses less digits than its factorization.

1022200209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182 (or 5176 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1022200209 is about 31971.8658980048. The cubic root of 1022200209 is about 1007.3459741921.

The spelling of 1022200209 in words is "one billion, twenty-two million, two hundred thousand, two hundred nine".