11222042042 has 4 divisors (see below), whose sum is σ = 16833063066. Its totient is φ = 5611021020.

The previous prime is 11222042017. The next prime is 11222042047. The reversal of 11222042042 is 24024022211.

11222042042 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6604975441 + 4617066601 = 81271^2 + 67949^2 .

It is not an unprimeable number, because it can be changed into a prime (11222042047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805510509 + ... + 2805510512.

Almost surely, 2^11222042042 is an apocalyptic number.

11222042042 is a deficient number, since it is larger than the sum of its proper divisors (5611021024).

11222042042 is an equidigital number, since it uses as much as digits as its factorization.

11222042042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611021023.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 11222042042 its reverse (24024022211), we get a palindrome (35246064253).

The spelling of 11222042042 in words is "eleven billion, two hundred twenty-two million, forty-two thousand, forty-two".