12212210122 has 48 divisors (see below), whose sum is σ = 22024493568. Its totient is φ = 5058516960.

The previous prime is 12212210053. The next prime is 12212210147. The reversal of 12212210122 is 22101221221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12212210096 and 12212210105.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2935668 + ... + 2939824.

It is an arithmetic number, because the mean of its divisors is an integer number (458843616).

Almost surely, 2^12212210122 is an apocalyptic number.

12212210122 is a deficient number, since it is larger than the sum of its proper divisors (9812283446).

12212210122 is a wasteful number, since it uses less digits than its factorization.

12212210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5171 (or 5164 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12212210122 its reverse (22101221221), we get a palindrome (34313431343).

It can be divided in two parts, 1221 and 2210122, that multiplied together give a palindrome (2698558962).

The spelling of 12212210122 in words is "twelve billion, two hundred twelve million, two hundred ten thousand, one hundred twenty-two".