11122144442 has 32 divisors (see below), whose sum is σ = 17011898640. Its totient is φ = 5452876800.

The previous prime is 11122144433. The next prime is 11122144469. The reversal of 11122144442 is 24444122111.

It can be written as a sum of positive squares in 8 ways, for example, as 9028990441 + 2093154001 = 95021^2 + 45751^2 .

It is a super-2 number, since 2×11122144442² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11022434 + ... + 11023442.

Almost surely, 2^11122144442 is an apocalyptic number.

11122144442 is a deficient number, since it is larger than the sum of its proper divisors (5889754198).

11122144442 is a wasteful number, since it uses less digits than its factorization.

11122144442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586.

The product of its digits is 2048, while the sum is 26.

Adding to 11122144442 its reverse (24444122111), we get a palindrome (35566266553).

The spelling of 11122144442 in words is "eleven billion, one hundred twenty-two million, one hundred forty-four thousand, four hundred forty-two".