12210111022 has 4 divisors (see below), whose sum is σ = 18315166536. Its totient is φ = 6105055510.

The previous prime is 12210111013. The next prime is 12210111041. The reversal of 12210111022 is 22011101221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22011101221 = 6037 ⋅3646033.

It is a super-2 number, since 2×12210111022² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12210110993 and 12210111011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3052527754 + ... + 3052527757.

It is an arithmetic number, because the mean of its divisors is an integer number (4578791634).

Almost surely, 2^12210111022 is an apocalyptic number.

12210111022 is a deficient number, since it is larger than the sum of its proper divisors (6105055514).

12210111022 is an equidigital number, since it uses as much as digits as its factorization.

12210111022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6105055513.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12210111022 its reverse (22011101221), we get a palindrome (34221212243).

The spelling of 12210111022 in words is "twelve billion, two hundred ten million, one hundred eleven thousand, twenty-two".