11310221112 has 32 divisors (see below), whose sum is σ = 29504926080. Its totient is φ = 3606157280.

The previous prime is 11310221101. The next prime is 11310221123. The reversal of 11310221112 is 21112201311.

It is an interprime number because it is at equal distance from previous prime (11310221101) and next prime (11310221123).

It is a super-2 number, since 2×11310221112² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11310221091 and 11310221100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10244214 + ... + 10245317.

It is an arithmetic number, because the mean of its divisors is an integer number (922028940).

Almost surely, 2^11310221112 is an apocalyptic number.

11310221112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11310221112 is an abundant number, since it is smaller than the sum of its proper divisors (18194704968).

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

11310221112 is a wasteful number, since it uses less digits than its factorization.

11310221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20489563 (or 20489559 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11310221112 its reverse (21112201311), we get a palindrome (32422422423).

The spelling of 11310221112 in words is "eleven billion, three hundred ten million, two hundred twenty-one thousand, one hundred twelve".