11221210210 has 24 divisors (see below), whose sum is σ = 23495841180. Its totient is φ = 3847271904.

The previous prime is 11221210199. The next prime is 11221210277. The reversal of 11221210210 is 1201212211.

It can be written as a sum of positive squares in 2 ways, for example, as 11215445409 + 5764801 = 105903^2 + 2401^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11449725 + ... + 11450704.

Almost surely, 2^11221210210 is an apocalyptic number.

11221210210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11221210210 is an abundant number, since it is smaller than the sum of its proper divisors (12274630970).

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

11221210210 is a wasteful number, since it uses less digits than its factorization.

11221210210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22900450 (or 22900443 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11221210210 its reverse (1201212211), we get a palindrome (12422422421).

The spelling of 11221210210 in words is "eleven billion, two hundred twenty-one million, two hundred ten thousand, two hundred ten".