12221001122 has 8 divisors (see below), whose sum is σ = 19998001872. Its totient is φ = 5555000500.

The previous prime is 12221001113. The next prime is 12221001151. The reversal of 12221001122 is 22110012221.

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

It is a junction number, because it is equal to n+sod(n) for n = 12221001097 and 12221001106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277750004 + ... + 277750047.

It is an arithmetic number, because the mean of its divisors is an integer number (2499750234).

Almost surely, 2^12221001122 is an apocalyptic number.

12221001122 is a deficient number, since it is larger than the sum of its proper divisors (7777000750).

12221001122 is a wasteful number, since it uses less digits than its factorization.

12221001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555500064.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12221001122 its reverse (22110012221), we get a palindrome (34331013343).

The spelling of 12221001122 in words is "twelve billion, two hundred twenty-one million, one thousand, one hundred twenty-two".