11111020211122 has 8 divisors (see below), whose sum is σ = 17948571110316. Its totient is φ = 5128163174352.

The previous prime is 11111020211107. The next prime is 11111020211147. The reversal of 11111020211122 is 22111202011111.

It can be written as a sum of positive squares in 2 ways, for example, as 11026391001201 + 84629209921 = 3320601^2 + 290911^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 11111020211096 and 11111020211105.

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, 213673465573 + ... + 213673465624.

Almost surely, 2^{11111020211122} is an apocalyptic number.

11111020211122 is a deficient number, since it is larger than the sum of its proper divisors (6837550899194).

11111020211122 is a wasteful number, since it uses less digits than its factorization.

11111020211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427346931212.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11111020211122 its reverse (22111202011111), we get a palindrome (33222222222233).

The spelling of 11111020211122 in words is "eleven trillion, one hundred eleven billion, twenty million, two hundred eleven thousand, one hundred twenty-two".