12211011122 has 4 divisors (see below), whose sum is σ = 18316516686. Its totient is φ = 6105505560.

The previous prime is 12211011103. The next prime is 12211011149. The reversal of 12211011122 is 22111011221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11621055601 + 589955521 = 107801^2 + 24289^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12211011097 and 12211011106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3052752779 + ... + 3052752782.

Almost surely, 2^12211011122 is an apocalyptic number.

12211011122 is a deficient number, since it is larger than the sum of its proper divisors (6105505564).

12211011122 is an equidigital number, since it uses as much as digits as its factorization.

12211011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6105505563.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12211011122 its reverse (22111011221), we get a palindrome (34322022343).

Subtracting 12211011122 from its reverse (22111011221), we obtain a palindrome (9900000099).

The spelling of 12211011122 in words is "twelve billion, two hundred eleven million, eleven thousand, one hundred twenty-two".