12212022220211 has 4 divisors (see below), whose sum is σ = 13322206058424. Its totient is φ = 11101838382000.

The previous prime is 12212022220193. The next prime is 12212022220241. The reversal of 12212022220211 is 11202222021221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12212022220211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212022220241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555091919090 + ... + 555091919111.

It is an arithmetic number, because the mean of its divisors is an integer number (3330551514606).

Almost surely, 2^{12212022220211} is an apocalyptic number.

12212022220211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12212022220211 is a deficient number, since it is larger than the sum of its proper divisors (1110183838213).

12212022220211 is a wasteful number, since it uses less digits than its factorization.

12212022220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110183838212.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12212022220211 its reverse (11202222021221), we get a palindrome (23414244241432).

The spelling of 12212022220211 in words is "twelve trillion, two hundred twelve billion, twenty-two million, two hundred twenty thousand, two hundred eleven".