12211111022 has 8 divisors (see below), whose sum is σ = 19981818072. Its totient is φ = 5550505000.

The previous prime is 12211111021. The next prime is 12211111039. The reversal of 12211111022 is 22011111221.

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

It is a super-2 number, since 2×12211111022² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12211110988 and 12211111006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211111021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277525229 + ... + 277525272.

It is an arithmetic number, because the mean of its divisors is an integer number (2497727259).

Almost surely, 2^12211111022 is an apocalyptic number.

12211111022 is a deficient number, since it is larger than the sum of its proper divisors (7770707050).

12211111022 is a wasteful number, since it uses less digits than its factorization.

12211111022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555050514.

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

Adding to 12211111022 its reverse (22011111221), we get a palindrome (34222222243).

The spelling of 12211111022 in words is "twelve billion, two hundred eleven million, one hundred eleven thousand, twenty-two".