11221022112 has 48 divisors (see below), whose sum is σ = 29462644512. Its totient is φ = 3739393280.

The previous prime is 11221022107. The next prime is 11221022117. The reversal of 11221022112 is 21122012211.

It is an interprime number because it is at equal distance from previous prime (11221022107) and next prime (11221022117).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×11221022112² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11221022091 and 11221022100.

It is not an unprimeable number, because it can be changed into a prime (11221022117) 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, 437878 + ... + 462794.

It is an arithmetic number, because the mean of its divisors is an integer number (613805094).

Almost surely, 2^11221022112 is an apocalyptic number.

11221022112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11221022112 is an abundant number, since it is smaller than the sum of its proper divisors (18241622400).

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

11221022112 is a wasteful number, since it uses less digits than its factorization.

11221022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29621 (or 29613 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11221022112 its reverse (21122012211), we get a palindrome (32343034323).

Subtracting 11221022112 from its reverse (21122012211), we obtain a palindrome (9900990099).

The spelling of 11221022112 in words is "eleven billion, two hundred twenty-one million, twenty-two thousand, one hundred twelve".