11221001010 has 32 divisors (see below), whose sum is σ = 29922670080. Its totient is φ = 2992266864.

The previous prime is 11221000993. The next prime is 11221001017. The reversal of 11221001010 is 1010012211.

It is a happy number.

11221001010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11221000983 and 11221001001.

It is not an unprimeable number, because it can be changed into a prime (11221001017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20779362 + ... + 20779901.

It is an arithmetic number, because the mean of its divisors is an integer number (935083440).

Almost surely, 2^11221001010 is an apocalyptic number.

11221001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11221001010 is an abundant number, since it is smaller than the sum of its proper divisors (18701669070).

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

11221001010 is a wasteful number, since it uses less digits than its factorization.

11221001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41559279 (or 41559273 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11221001010 its reverse (1010012211), we get a palindrome (12231013221).

The spelling of 11221001010 in words is "eleven billion, two hundred twenty-one million, one thousand, ten".