122102212111 has 12 divisors (see below), whose sum is σ = 134288316736. Its totient is φ = 110938497120.

The previous prime is 122102212079. The next prime is 122102212153. The reversal of 122102212111 is 111212201221.

It is not a de Polignac number, because 122102212111 - 2⁵ = 122102212079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102212171) 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 11 ways as a sum of consecutive naturals, for example, 75711 + ... + 499936.

Almost surely, 2^122102212111 is an apocalyptic number.

122102212111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122102212111 is a deficient number, since it is larger than the sum of its proper divisors (12186104625).

122102212111 is a wasteful number, since it uses less digits than its factorization.

122102212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577422 (or 577411 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122102212111 its reverse (111212201221), we get a palindrome (233314413332).

The spelling of 122102212111 in words is "one hundred twenty-two billion, one hundred two million, two hundred twelve thousand, one hundred eleven".