11222221010 has 64 divisors (see below), whose sum is σ = 27121699584. Its totient is φ = 3228768000.

The previous prime is 11222220967. The next prime is 11222221091. The reversal of 11222221010 is 1012222211.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 550541 + ... + 570560.

It is an arithmetic number, because the mean of its divisors is an integer number (423776556).

Almost surely, 2^11222221010 is an apocalyptic number.

11222221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11222221010 is an abundant number, since it is smaller than the sum of its proper divisors (15899478574).

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

11222221010 is a wasteful number, since it uses less digits than its factorization.

11222221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121139.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11222221010 its reverse (1012222211), we get a palindrome (12234443221).

It can be divided in two parts, 11222 and 221010, that added together give a palindrome (232232).

The spelling of 11222221010 in words is "eleven billion, two hundred twenty-two million, two hundred twenty-one thousand, ten".