12121201222 has 8 divisors (see below), whose sum is σ = 19580402016. Its totient is φ = 5594400552.

The previous prime is 12121201219. The next prime is 12121201247. The reversal of 12121201222 is 22210212121.

It is a happy number.

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 = 12121201196 and 12121201205.

It is a congruent number.

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, 233099998 + ... + 233100049.

It is an arithmetic number, because the mean of its divisors is an integer number (2447550252).

Almost surely, 2^12121201222 is an apocalyptic number.

12121201222 is a deficient number, since it is larger than the sum of its proper divisors (7459200794).

12121201222 is a wasteful number, since it uses less digits than its factorization.

12121201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466200062.

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

Adding to 12121201222 its reverse (22210212121), we get a palindrome (34331413343).

The spelling of 12121201222 in words is "twelve billion, one hundred twenty-one million, two hundred one thousand, two hundred twenty-two".