11112221334 has 32 divisors (see below), whose sum is σ = 23990411520. Its totient is φ = 3420852512.

The previous prime is 11112221299. The next prime is 11112221339. The reversal of 11112221334 is 43312221111.

It is a self number, because there is not a number n which added to its sum of digits gives 11112221334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112221339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1384332 + ... + 1392335.

It is an arithmetic number, because the mean of its divisors is an integer number (749700360).

Almost surely, 2^11112221334 is an apocalyptic number.

11112221334 is an abundant number, since it is smaller than the sum of its proper divisors (12878190186).

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

11112221334 is a wasteful number, since it uses less digits than its factorization.

11112221334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776724.

The product of its digits is 288, while the sum is 21.

Adding to 11112221334 its reverse (43312221111), we get a palindrome (54424442445).

The spelling of 11112221334 in words is "eleven billion, one hundred twelve million, two hundred twenty-one thousand, three hundred thirty-four".