122021222110111 has 16 divisors (see below), whose sum is σ = 122704035840000. Its totient is φ = 121340472536448.

The previous prime is 122021222110037. The next prime is 122021222110133. The reversal of 122021222110111 is 111011222120221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 122021222110111 - 2¹¹ = 122021222108063 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 (122021222110141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 569024290 + ... + 569238688.

It is an arithmetic number, because the mean of its divisors is an integer number (7669002240000).

Almost surely, 2^{122021222110111} is an apocalyptic number.

122021222110111 is a deficient number, since it is larger than the sum of its proper divisors (682813729889).

122021222110111 is a wasteful number, since it uses less digits than its factorization.

122021222110111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219198.

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

Adding to 122021222110111 its reverse (111011222120221), we get a palindrome (233032444230332).

The spelling of 122021222110111 in words is "one hundred twenty-two trillion, twenty-one billion, two hundred twenty-two million, one hundred ten thousand, one hundred eleven".