11199777242 has 8 divisors (see below), whose sum is σ = 17787881556. Its totient is φ = 5270483392.

The previous prime is 11199777229. The next prime is 11199777301. The reversal of 11199777242 is 24277799111.

It is a Cunningham number, because it is equal to 105829²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 11199777241 + 1 = 105829^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11199777242² (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 3 ways as a sum of consecutive naturals, for example, 164702573 + ... + 164702640.

Almost surely, 2^11199777242 is an apocalyptic number.

11199777242 is a deficient number, since it is larger than the sum of its proper divisors (6588104314).

11199777242 is a wasteful number, since it uses less digits than its factorization.

11199777242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329405232.

The product of its digits is 444528, while the sum is 50.

The spelling of 11199777242 in words is "eleven billion, one hundred ninety-nine million, seven hundred seventy-seven thousand, two hundred forty-two".