11211011122 has 4 divisors (see below), whose sum is σ = 16816516686. Its totient is φ = 5605505560.

The previous prime is 11211011093. The next prime is 11211011159. The reversal of 11211011122 is 22111011211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22111011211 = 14479 ⋅1527109.

It can be written as a sum of positive squares in only one way, i.e., 5788014241 + 5422996881 = 76079^2 + 73641^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2802752779 + ... + 2802752782.

Almost surely, 2^11211011122 is an apocalyptic number.

11211011122 is a deficient number, since it is larger than the sum of its proper divisors (5605505564).

11211011122 is an equidigital number, since it uses as much as digits as its factorization.

11211011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605505563.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11211011122 its reverse (22111011211), we get a palindrome (33322022333).

The spelling of 11211011122 in words is "eleven billion, two hundred eleven million, eleven thousand, one hundred twenty-two".