122111220211102 has 4 divisors (see below), whose sum is σ = 183166830316656. Its totient is φ = 61055610105550.

The previous prime is 122111220211073. The next prime is 122111220211147. The reversal of 122111220211102 is 201112022111221.

It is a happy number.

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

It is a super-2 number, since 2×122111220211102² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122111220211102.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 30527805052774 + ... + 30527805052777.

It is an arithmetic number, because the mean of its divisors is an integer number (45791707579164).

Almost surely, 2^{122111220211102} is an apocalyptic number.

122111220211102 is a deficient number, since it is larger than the sum of its proper divisors (61055610105554).

122111220211102 is an equidigital number, since it uses as much as digits as its factorization.

122111220211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61055610105553.

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

Adding to 122111220211102 its reverse (201112022111221), we get a palindrome (323223242322323).

The spelling of 122111220211102 in words is "one hundred twenty-two trillion, one hundred eleven billion, two hundred twenty million, two hundred eleven thousand, one hundred two".