122101222211011 has 16 divisors (see below), whose sum is σ = 132681728343040. Its totient is φ = 111936582862560.

The previous prime is 122101222210969. The next prime is 122101222211027. The reversal of 122101222211011 is 110112222101221.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122101222211011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 122101222211011.

It is not an unprimeable number, because it can be changed into a prime (122101222211071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3390976 + ... + 15990658.

It is an arithmetic number, because the mean of its divisors is an integer number (8292608021440).

Almost surely, 2^{122101222211011} is an apocalyptic number.

122101222211011 is a deficient number, since it is larger than the sum of its proper divisors (10580506132029).

122101222211011 is a wasteful number, since it uses less digits than its factorization.

122101222211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12616186.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 122101222211011 its reverse (110112222101221), we get a palindrome (232213444312232).

The spelling of 122101222211011 in words is "one hundred twenty-two trillion, one hundred one billion, two hundred twenty-two million, two hundred eleven thousand, eleven".