122102111211 has 16 divisors (see below), whose sum is σ = 168095059968. Its totient is φ = 78756552000.

The previous prime is 122102111191. The next prime is 122102111249. The reversal of 122102111211 is 112111201221.

It is a happy number.

It is not a de Polignac number, because 122102111211 - 2¹⁵ = 122102078443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122102111251) 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, 234430 + ... + 546956.

It is an arithmetic number, because the mean of its divisors is an integer number (10505941248).

Almost surely, 2^122102111211 is an apocalyptic number.

122102111211 is a deficient number, since it is larger than the sum of its proper divisors (45992948757).

122102111211 is a wasteful number, since it uses less digits than its factorization.

122102111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316762.

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

Adding to 122102111211 its reverse (112111201221), we get a palindrome (234213312432).

The spelling of 122102111211 in words is "one hundred twenty-two billion, one hundred two million, one hundred eleven thousand, two hundred eleven".