11221111010 has 48 divisors (see below), whose sum is σ = 21813048576. Its totient is φ = 4153264416.

The previous prime is 11221111003. The next prime is 11221111037. The reversal of 11221111010 is 1011112211.

It is a junction number, because it is equal to n+sod(n) for n = 11221110982 and 11221111000.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119087 + ... + 191373.

It is an arithmetic number, because the mean of its divisors is an integer number (454438512).

Almost surely, 2^11221111010 is an apocalyptic number.

11221111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11221111010 is a deficient number, since it is larger than the sum of its proper divisors (10591937566).

11221111010 is a wasteful number, since it uses less digits than its factorization.

11221111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72375 (or 72356 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11221111010 its reverse (1011112211), we get a palindrome (12232223221).

The spelling of 11221111010 in words is "eleven billion, two hundred twenty-one million, one hundred eleven thousand, ten".