12122221202211 has 8 divisors (see below), whose sum is σ = 16163262339840. Its totient is φ = 8081330433032.

The previous prime is 12122221202171. The next prime is 12122221202263. The reversal of 12122221202211 is 11220212222121.

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

It is a cyclic number.

It is not a de Polignac number, because 12122221202211 - 2¹⁷ = 12122221071139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12122221202281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37403871 + ... + 37726568.

It is an arithmetic number, because the mean of its divisors is an integer number (2020407792480).

Almost surely, 2^{12122221202211} is an apocalyptic number.

12122221202211 is a deficient number, since it is larger than the sum of its proper divisors (4041041137629).

12122221202211 is an equidigital number, since it uses as much as digits as its factorization.

12122221202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75184225.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12122221202211 its reverse (11220212222121), we get a palindrome (23342433424332).

The spelling of 12122221202211 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred two thousand, two hundred eleven".