122212320211 has 4 divisors (see below), whose sum is σ = 122216543752. Its totient is φ = 122208096672.

The previous prime is 122212320169. The next prime is 122212320247. The reversal of 122212320211 is 112023212221.

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

It is a cyclic number.

It is not a de Polignac number, because 122212320211 - 2⁹ = 122212319699 is a prime.

It is a super-2 number, since 2×122212320211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122212320311) 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, 2068065 + ... + 2126338.

It is an arithmetic number, because the mean of its divisors is an integer number (30554135938).

Almost surely, 2^122212320211 is an apocalyptic number.

122212320211 is a deficient number, since it is larger than the sum of its proper divisors (4223541).

122212320211 is an equidigital number, since it uses as much as digits as its factorization.

122212320211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4223540.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 122212320211 its reverse (112023212221), we get a palindrome (234235532432).

The spelling of 122212320211 in words is "one hundred twenty-two billion, two hundred twelve million, three hundred twenty thousand, two hundred eleven".