11212242442 has 4 divisors (see below), whose sum is σ = 16818363666. Its totient is φ = 5606121220.

The previous prime is 11212242439. The next prime is 11212242451. The reversal of 11212242442 is 24424221211.

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., 9894479841 + 1317762601 = 99471^2 + 36301^2 .

It is a super-2 number, since 2×11212242442² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2803060609 + ... + 2803060612.

Almost surely, 2^11212242442 is an apocalyptic number.

11212242442 is a deficient number, since it is larger than the sum of its proper divisors (5606121224).

11212242442 is an equidigital number, since it uses as much as digits as its factorization.

11212242442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606121223.

The product of its digits is 2048, while the sum is 25.

Adding to 11212242442 its reverse (24424221211), we get a palindrome (35636463653).

The spelling of 11212242442 in words is "eleven billion, two hundred twelve million, two hundred forty-two thousand, four hundred forty-two".