11211012242 has 4 divisors (see below), whose sum is σ = 16816518366. Its totient is φ = 5605506120.

The previous prime is 11211012223. The next prime is 11211012259. The reversal of 11211012242 is 24221011211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24221011211 = 41 ⋅590756371.

It can be written as a sum of positive squares in only one way, i.e., 10928402521 + 282609721 = 104539^2 + 16811^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11211012242.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2802753059 + ... + 2802753062.

Almost surely, 2^11211012242 is an apocalyptic number.

11211012242 is a deficient number, since it is larger than the sum of its proper divisors (5605506124).

11211012242 is an equidigital number, since it uses as much as digits as its factorization.

11211012242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605506123.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11211012242 its reverse (24221011211), we get a palindrome (35432023453).

The spelling of 11211012242 in words is "eleven billion, two hundred eleven million, twelve thousand, two hundred forty-two".