11220343134 has 64 divisors (see below), whose sum is σ = 30130168320. Its totient is φ = 2690190720.

The previous prime is 11220343117. The next prime is 11220343139. The reversal of 11220343134 is 43134302211.

It is a happy number.

It is a super-2 number, since 2×11220343134² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220343139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 928089 + ... + 940100.

It is an arithmetic number, because the mean of its divisors is an integer number (470783880).

Almost surely, 2^11220343134 is an apocalyptic number.

11220343134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11220343134 is an abundant number, since it is smaller than the sum of its proper divisors (18909825186).

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

11220343134 is a wasteful number, since it uses less digits than its factorization.

11220343134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868225.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 11220343134 its reverse (43134302211), we get a palindrome (54354645345).

The spelling of 11220343134 in words is "eleven billion, two hundred twenty million, three hundred forty-three thousand, one hundred thirty-four".