122012212211 has 4 divisors (see below), whose sum is σ = 122186267424. Its totient is φ = 121838157000.

The previous prime is 122012212123. The next prime is 122012212271. The reversal of 122012212211 is 112212210221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112212210221 = 653 ⋅171841057.

It is a cyclic number.

It is not a de Polignac number, because 122012212211 - 2¹⁰ = 122012211187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122012212211.

It is not an unprimeable number, because it can be changed into a prime (122012212271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87026555 + ... + 87027956.

It is an arithmetic number, because the mean of its divisors is an integer number (30546566856).

Almost surely, 2^122012212211 is an apocalyptic number.

122012212211 is a deficient number, since it is larger than the sum of its proper divisors (174055213).

122012212211 is an equidigital number, since it uses as much as digits as its factorization.

122012212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174055212.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122012212211 its reverse (112212210221), we get a palindrome (234224422432).

The spelling of 122012212211 in words is "one hundred twenty-two billion, twelve million, two hundred twelve thousand, two hundred eleven".