12211131122 has 4 divisors (see below), whose sum is σ = 18316696686. Its totient is φ = 6105565560.

The previous prime is 12211131103. The next prime is 12211131131. The reversal of 12211131122 is 22113111221.

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: 22113111221 = 19 ⋅1163847959.

It can be written as a sum of positive squares in only one way, i.e., 11176929841 + 1034201281 = 105721^2 + 32159^2 .

It is a super-2 number, since 2×12211131122² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12211131122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3052782779 + ... + 3052782782.

Almost surely, 2^12211131122 is an apocalyptic number.

12211131122 is a deficient number, since it is larger than the sum of its proper divisors (6105565564).

12211131122 is an equidigital number, since it uses as much as digits as its factorization.

12211131122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6105565563.

The product of its digits is 48, while the sum is 17.

Adding to 12211131122 its reverse (22113111221), we get a palindrome (34324242343).

The spelling of 12211131122 in words is "twelve billion, two hundred eleven million, one hundred thirty-one thousand, one hundred twenty-two".