10011222220 has 24 divisors (see below), whose sum is σ = 21139726608. Its totient is φ = 3982363200.

The previous prime is 10011222173. The next prime is 10011222223. The reversal of 10011222220 is 2222211001.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 10011222220.

It is not an unprimeable number, because it can be changed into a prime (10011222223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1379146 + ... + 1386385.

It is an arithmetic number, because the mean of its divisors is an integer number (880821942).

Almost surely, 2^10011222220 is an apocalyptic number.

10011222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10011222220 is an abundant number, since it is smaller than the sum of its proper divisors (11128504388).

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

10011222220 is a wasteful number, since it uses less digits than its factorization.

10011222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765721 (or 2765719 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10011222220 its reverse (2222211001), we get a palindrome (12233433221).

It can be divided in two parts, 1001 and 1222220, that added together give a palindrome (1223221).

The spelling of 10011222220 in words is "ten billion, eleven million, two hundred twenty-two thousand, two hundred twenty".