122210111211 has 16 divisors (see below), whose sum is σ = 163323746208. Its totient is φ = 81285120000.

The previous prime is 122210111167. The next prime is 122210111239. The reversal of 122210111211 is 112111012221.

It is a happy number.

It is not a de Polignac number, because 122210111211 - 2¹¹ = 122210109163 is a prime.

It is a super-2 number, since 2×122210111211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122210161211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2865435 + ... + 2907771.

It is an arithmetic number, because the mean of its divisors is an integer number (10207734138).

Almost surely, 2^122210111211 is an apocalyptic number.

122210111211 is a deficient number, since it is larger than the sum of its proper divisors (41113634997).

122210111211 is a wasteful number, since it uses less digits than its factorization.

122210111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44542.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 122210111211 its reverse (112111012221), we get a palindrome (234321123432).

The spelling of 122210111211 in words is "one hundred twenty-two billion, two hundred ten million, one hundred eleven thousand, two hundred eleven".