12121211201122 has 4 divisors (see below), whose sum is σ = 18181816801686. Its totient is φ = 6060605600560.

The previous prime is 12121211201119. The next prime is 12121211201123. The reversal of 12121211201122 is 22110211212121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11237989040721 + 883222160401 = 3352311^2 + 939799^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12121211201122.

It is not an unprimeable number, because it can be changed into a prime (12121211201123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3030302800279 + ... + 3030302800282.

Almost surely, 2^{12121211201122} is an apocalyptic number.

12121211201122 is a deficient number, since it is larger than the sum of its proper divisors (6060605600564).

12121211201122 is an equidigital number, since it uses as much as digits as its factorization.

12121211201122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060605600563.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12121211201122 its reverse (22110211212121), we get a palindrome (34231422413243).

The spelling of 12121211201122 in words is "twelve trillion, one hundred twenty-one billion, two hundred eleven million, two hundred one thousand, one hundred twenty-two".