11222222742 has 24 divisors (see below), whose sum is σ = 25153259040. Its totient is φ = 3611749680.

The previous prime is 11222222741. The next prime is 11222222761. The reversal of 11222222742 is 24722222211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222222741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10748734 + ... + 10749777.

It is an arithmetic number, because the mean of its divisors is an integer number (1048052460).

Almost surely, 2^11222222742 is an apocalyptic number.

11222222742 is an abundant number, since it is smaller than the sum of its proper divisors (13931036298).

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

11222222742 is a wasteful number, since it uses less digits than its factorization.

11222222742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21498548 (or 21498545 counting only the distinct ones).

The product of its digits is 3584, while the sum is 27.

Adding to 11222222742 its reverse (24722222211), we get a palindrome (35944444953).

The spelling of 11222222742 in words is "eleven billion, two hundred twenty-two million, two hundred twenty-two thousand, seven hundred forty-two".