12011211220222 has 8 divisors (see below), whose sum is σ = 18127349449416. Its totient is φ = 5968761403752.

The previous prime is 12011211220213. The next prime is 12011211220277. The reversal of 12011211220222 is 22202211211021.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12011211220222.

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, 18422102773 + ... + 18422103424.

It is an arithmetic number, because the mean of its divisors is an integer number (2265918681177).

Almost surely, 2^{12011211220222} is an apocalyptic number.

12011211220222 is a deficient number, since it is larger than the sum of its proper divisors (6116138229194).

12011211220222 is a wasteful number, since it uses less digits than its factorization.

12011211220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36844206362.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12011211220222 its reverse (22202211211021), we get a palindrome (34213422431243).

The spelling of 12011211220222 in words is "twelve trillion, eleven billion, two hundred eleven million, two hundred twenty thousand, two hundred twenty-two".